Next Article in Journal
Molecular Imaging of Coronary Plaque Vulnerability Using 18F-Fluorocholine PET-MRI in Patients with Coronary Artery Disease: Validation with Optical Coherence Tomography
Next Article in Special Issue
Age-Dependent Association Between Insomnia and Body Mass Index Among Young Women: Evidence from a Cross-Sectional Study
Previous Article in Journal
Emotion Dysregulation, Impulsivity, and Implicit Cognition in Adolescent with Self-Injurious Thoughts and Behaviors: A Six-Month Prospective Study
Previous Article in Special Issue
Practical Application of Polysomnography in Infants
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
JCM
Volume 14
Issue 24
10.3390/jcm14248709
jcm-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Systematic Review

Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review

by
Amal H. Aljohani
1,*,
Abdullah Heliel Aljohani
2 and
Khalid Mohammed Alshammari
3
1
Pediatric Department, College of Medicine, Taibah University, Madinah 42353, Saudi Arabia
2
Family Medicine, Madinah Health Cluster, Madinah 42313, Saudi Arabia
3
Family Medicine, North Borders Health Cluster, Arar 91431, Saudi Arabia
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2025, 14(24), 8709; https://doi.org/10.3390/jcm14248709
Submission received: 31 October 2025 / Revised: 5 December 2025 / Accepted: 5 December 2025 / Published: 9 December 2025
(This article belongs to the Special Issue The Association Between Sleep Disorders and Metabolic and Mental Health)
Browse Figures
Versions Notes

Abstract

Background: Obesity and sleep issues are pressing health challenges that are closely tied together. Poor sleep can lead to weight gain, and in turn, obesity can make sleep problems worse. In Saudi Arabia, lifestyle habits—like having late-night meals, excessive screen time, and a lack of physical activity—might worsen these relationships at every age. Objectives: This review explores the relationship between obesity and sleep disorders across different stages of life in Saudi populations. Methods: We conducted a systematic review following the PRISMA 2020 guidelines. From December 2023 to March 2024, we searched PubMed, Scopus, Web of Science, and ScienceDirect for English-language observational studies related to obesity and sleep among Saudi populations. We evaluated the risk of bias using the ROBINS-I tool. Results: We included fourteen studies, involving 14,876 participants (49.8% male). The findings consistently indicated that obesity is linked to poor sleep quality, shorter sleep duration, insomnia, excessive daytime sleepiness, and breathing issues during sleep such as obstructive sleep apnea. Most studies showed a moderate risk of bias, mainly due to their cross-sectional designs and reliance on self-reported sleep data. Conclusions: Obesity and sleep disturbances are closely linked across all age groups in Saudi Arabia. Most studies reported associations between higher body weight and poorer sleep outcomes, including shorter duration, lower quality, and increased risk of sleep-disordered breathing. These findings underscore the need for age-specific public health strategies that encourage healthy sleep habits and lifestyle behaviors. Limitations: Variability in measurement methods across studies prevented us from conducting a meta-analysis. Funding/Registration: No funding; review not registered.

1. Introduction

Obesity is a complex and multifactorial disease [1]. About one-third of the world’s population now has a BMI of 25 kg/m2 or higher, indicating a significant increase in overweight and obesity rates over the past thirty years. BMI, calculated as body weight in kilograms divided by the square of height in meters (kg/m2), is the most widely used measure to assess obesity. Individuals with a BMI of 25 kg/m2 or greater are classified as overweight, while those with a BMI of 30 kg/m2 or higher are considered obese [2].
Obesity is a major global public health issue because of its increasing prevalence and strong links to various comorbidities such as cardiovascular disease, chronic respiratory conditions, type 2 diabetes, endocrine disorders, and multiple cancer types [1,3,4,5]. These obesity-related conditions increase healthcare costs and place a substantial economic and societal burden on communities. The primary drivers of the global obesity epidemic are modern dietary and lifestyle shifts, including increased consumption of high-calorie, nutrient-poor foods and decreased physical activity, which collectively create a persistent positive energy balance and weight gain [6,7].
Sleep disturbances (SDs) affect millions worldwide. Data from the National Health Interview Survey (NHIS) between 2004 and 2006 indicate that 70 million Americans experienced chronic sleep loss and sleep disruptions, which are strongly linked to poor health outcomes [8]. Adequate sleep is essential for maintaining overall health, supporting memory consolidation, tissue repair, metabolic regulation, and homeostatic balance. Proper immune and endocrine system functioning also relies heavily on sufficient sleep [8,9,10].
The National Sleep Foundation recommends 7–9 h of sleep for adults aged 18–64, 7–8 h for older adults (aged 65 and above), and more than 9 h for children under 14 [11]. Given the well-established association between sleep disorders and obesity, assessing sleep quality is crucial in managing patients with excess body weight [12,13].
Short sleep duration has been positively associated with obesity in both adolescents and adults; however, the mechanisms underlying this association may differ. Reduced sleep can lead to behavioral and hormonal changes that increase food intake, promote unhealthy dietary habits, and reduce physical activity, thereby contributing to weight gain [14,15]. Conversely, obesity itself can exacerbate sleep disturbances through comorbid conditions such as obstructive sleep apnea (OSA), functional gastrointestinal disorders (e.g., irritable bowel syndrome, functional dyspepsia), nocturia, asthma, and musculoskeletal pain [16].
This review aims to summarize the evidence regarding the link between obesity and sleep disturbances and to pinpoint factors specific to Saudi Arabia that contribute to these issues.

2. Methodology

This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines (Table S1: PRISMA-checklist) [17]. Databases were searched from December 2023 to March 2024.

2.1. Search Strategy

To identify relevant literature, two reviewers independently performed ROBINS-I assessments; discrepancies were resolved by consensus. They screened the results and extracted data across four databases: PubMed, Scopus, Web of Science, and ScienceDirect. The search was restricted to English-language publications, and the unique indexing requirements of each database were considered.
The following keywords were transformed into PubMed MeSH terms and applied to locate relevant studies: “Obesity,” “Overweight,” “Sleep patterns,” “Sleep duration,” “Sleep disorders,” and “Saudi Arabia.” Boolean operators “OR” and “AND” were used to combine and refine results. Eligible publications included full-text, English-language articles involving human subjects and freely accessible data.

2.2. Selection Criteria

Inclusion criteria focused on studies that summarized data on the relationship between obesity and sleep disturbances and identified potential correlations. Only research conducted in Saudi Arabia was included, with no restrictions on participant age—studies involving human subjects, published in English, and freely accessible were considered.
Exclusion criteria included non-Saudi studies, non-English papers, review articles without primary data, and abstracts lacking full-text availability.

2.3. Data Extraction

The output from the search process was verified twice using Rayyan (QCRI) software (Rayyan, 2016; accessed March 2024) [18]. Researchers independently reviewed titles and abstracts according to inclusion and exclusion criteria. Any disagreements were resolved through discussion among reviewers.
For the included studies, data were collected using a predefined form that captured information on study titles, authors, publication year, study location, participant demographics, sleep assessment methods, and primary outcomes. Primary outcomes included body mass index (BMI), sleep duration, sleep quality, and the prevalence of sleep-related disorders, including obstructive sleep apnea (OSA). A separate sheet was used to record the risk-of-bias assessment. Other extracted data included study design and sample size, where available.

2.4. Strategy for Data Synthesis

A qualitative evaluation was performed by developing summary tables that integrated data from relevant studies. All age groups were included in the initial analysis. During synthesis, studies were subsequently summarized according to participant age (children, adolescents, adults) to highlight population-specific trends. Data synthesis focused on identifying patterns between sleep quality, duration, and obesity prevalence in Saudi populations.
A meta-analysis was not performed due to substantial heterogeneity across the included studies. This heterogeneity stemmed from several sources: differences in study designs (e.g., cross-sectional vs. retrospective), wide variation in participant age ranges (from young children to older adults), the use of various sleep assessment tools (e.g., PSG: polysomnography; PSQI: Pittsburgh Sleep Quality Index; ESS: Epworth Sleepiness Scale; ATLS: Arab Teens Lifestyle Study questionnaire; and self-reported questionnaires), and inconsistent definitions and measurements of both obesity and sleep disorders. Lifestyle factors, such as screen time, diet, and physical activity levels, also varied across studies, further complicating comparability. Given this variability, pooling data—and producing a forest plot—was methodologically inappropriate. Consequently, no sensitivity analyses or formal publication bias assessments were conducted. This approach aligns with PRISMA 2020 recommendations for conducting narrative synthesis when meta-analysis is not feasible.

2.5. Risk of Bias Assessment

The quality of included studies was evaluated using the ROBINS-I (Risk Of Bias In Non-randomized Studies of Interventions) tool [19]. We selected ROBINS-I because of its domain-based structure, which is appropriate for evaluating non-randomized studies. Although ROBINS-E was developed for studies of exposure, it was neither validated nor publicly available at the time we planned our review. The Newcastle–Ottawa Scale was also considered but deemed less suitable due to its limited domain coverage and its primary focus on cohort and case–control designs. The ROBINS-I assessment covered seven domains: confounding, participant selection, classification of exposures, deviations from intended interventions, missing data, outcome measurement, and selective reporting. Reporting bias was not formally assessed due to the small number of studies included. Certainty of evidence was not graded using GRADE because of substantial heterogeneity in study methodologies and outcomes.

3. Results

A total of 857 articles were identified through the systematic search. After removing 287 duplicates, 570 unique records remained for screening. Following title and abstract review, 422 studies were excluded for not meeting the inclusion criteria. Full-text retrieval was attempted for 148 reports; 144 full-text articles were successfully obtained and evaluated in detail, while four could not be retrieved. Among these, 77 were excluded due to unrelated outcomes, 34 due to inappropriate populations, 17 due to being conducted outside Saudi Arabia, and 2 were letters to the editor. Ultimately, 14 studies fulfilled all inclusion criteria and were included in this systematic review. A list of excluded full-text studies with reasons for exclusion (e.g., unrelated outcomes, wrong population, lack of full-text availability) is provided (Figure 1).
Together, these studies included 14,876 participants, of whom 7413 were male (49.8%). The majority adopted a cross-sectional design as illustrated in Table 1 [20,21,22,23,24,25,26,27,28,29,30], while two employed a retrospective approach [31,32]. Geographically, five studies were conducted in Riyadh [20,23,24,31,32], two in Jeddah [21,33], and the remaining studies across Hail [22], Madinah [25], Al-Khobar [26], Taif [27], Al-Hasa [28], Dammam [29], and Qassim [30].
Sample sizes ranged from fewer than 100 to nearly 3000 participants, encompassing diverse age groups, including children, adolescents, university students, and adults. Both genders were well represented. An overview of the study selection process is depicted in Figure 1, and a summary of the sociodemographic characteristics of the included studies is presented in Table 1.
Across the reviewed studies, obesity was consistently associated with multiple sleep disturbances, including poor sleep quality [30], insomnia and difficulty maintaining sleep [20], insufficient nighttime sleep [24,26,33], and excessive daytime sleepiness [27]. Sleep-disordered breathing, particularly obstructive sleep apnea and hypopnea, was markedly more prevalent and severe among individuals with obesity [21,25,31,32]. While we did not perform a formal GRADE assessment, we qualitatively judged the certainty of evidence based on study design, sample size, and measurement tools. For example, associations between obesity and sleep-disordered breathing—supported by studies using objective tools like PSG—were considered stronger. In contrast, findings related to sleep quality or insomnia, which relied on self-reported data, were judged to have lower confidence.
Among children, obesity emerged as a risk factor for sleep-disordered breathing [25,31,33], except for one pediatric study that did not find an independent association between obesity and short sleep duration [24]. Whereas in adults, severe obesity was linked to complications such as obesity hypoventilation syndrome [32]. In adolescents and young adults, lifestyle factors, including increased screen time, sedentary behavior, and unhealthy dietary patterns, intensify the association between obesity and sleep disorders [22,24,26,33]. Psychosocial factors, especially anxiety and stress, also served as mediators in this complex relationship [20].
Collectively, these findings highlight the complex interplay between obesity and sleep disorders in Saudi populations, encompassing biological, behavioral, and environmental factors. Clinical characteristics and sleep-related outcomes are detailed in Table 2. Most studies demonstrated a moderate risk of bias, mainly due to self-reported sleep data and cross-sectional designs. Across the reviewed studies, a consistent link emerged between obesity and sleep disorders, demonstrating how excess body weight negatively affects multiple aspects of sleep health. Poor sleep quality was commonly reported among obese individuals [28,30], while insomnia and difficulty maintaining sleep were observed in both adults and adolescents, suggesting a potential impact of obesity on sleep regulation mechanisms [20]. Among children and adolescents, short sleep duration was particularly prevalent and strongly associated with an increased risk of obesity [24,26,33]. In adults and university groups, frequent reports of excessive daytime sleepiness likely indicate poor sleep efficiency and disrupted circadian rhythms [27]. Additionally, sleep-disordered breathing issues, such as obstructive sleep apnea (OSA) and hypopnea, were notably more common and severe in individuals with higher body mass index (BMI) levels [21,25,31,32]. In addition to physiological factors, lifestyle behaviors such as excessive screen time, sedentary routines, and poor dietary choices further strengthen the link between obesity and sleep disorders. Moreover, psychosocial elements like anxiety and emotional stress played a role in sleep disturbances, highlighting the complex and reciprocal relationship between obesity and poor sleep patterns.
A meta-analysis was not performed due to substantial heterogeneity in study design, participant characteristics, and outcome measures. Variation in age groups, sleep-assessment tools, and lifestyle behaviors appeared to contribute most to heterogeneity among study findings. No formal sensitivity analyses were conducted. Reporting bias was not assessed because of the limited number of studies included. Overall certainty of evidence was considered low to moderate, reflecting the predominance of observational study designs and variability in outcome measures.

4. Discussion

This review demonstrates an association between obesity and sleep disorders across all age groups in Saudi Arabia, with both prevalence and severity shaped by age, sleep type, and lifestyle behaviors. As results showed, obesity was repeatedly linked to various sleep disorders [24,26,27,30,33]. Consistent with the findings of Bacaro et al. [34], who reported inconsistent associations between long sleep duration and obesity, the evidence presented here supports short sleep duration as a more reliable predictor of obesity risk in both children and adults. Extended sleep duration was not associated with an increased risk of obesity, partially aligning with prior meta-analyses [35,36].
In Saudi Arabia, distinctive lifestyle patterns—late-night eating, high-calorie evening snacks, and prolonged screen exposure (especially among adolescents)—may intensify the link between poor sleep and obesity. The consistent association between short sleep duration and higher BMI in the included studies suggests that interventions promoting sleep hygiene, stable routines, and behavioral change could help reduce obesity risk and its related health problems [22,24,26,33]. Although the associations observed align with global data, specific patterns appear to be particularly influenced by sociocultural and environmental factors unique to Saudi Arabia. For example, cultural norms often favor late-night social meals and evening activities; moreover, the hot desert climate tends to encourage indoor, sedentary lifestyles during the day, both of which may contribute to poor sleep and weight gain. These region-specific factors underscore the need for culturally tailored public health interventions that support healthier daily routines, offer accessible indoor physical activity options, and raise awareness of the impact of disrupted sleep and nighttime behaviors.
In the studies included, gender differences are a significant variable in the relationship between sleep and obesity. Several studies reported that males exhibited higher rates of obesity and associated sleep disturbances such as obstructive sleep apnea [21,31,32] as well as shorter sleep durations and poorer sleep hygiene [20,26]. Conversely, females were more likely to report poor sleep quality [20,28]. They had a higher prevalence of certain health conditions, such as anemia and vitamin D deficiency [23], which could indirectly affect sleep and weight. Cultural and behavioral factors, including reduced physical activity among females and unhealthy dietary habits among males, were also cited as contributing to these patterns [24,33]. These findings underscore the importance of incorporating gender-specific considerations into future research and targeted interventions in Saudi Arabia.

4.1. Physiological Evidence and Mechanisms

The connection between sleep and obesity involves hormonal, behavioral, and physiological factors. Sleep deprivation alters the balance of appetite-regulating hormones—lowering leptin and increasing ghrelin—which promotes increased hunger and caloric intake [37]. It also triggers behavioral changes such as greater screen time, late-night eating, and reduced physical activity, all of which contribute to weight gain [38,39]. In the Saudi context, cultural habits such as late-night high-calorie meals, extended evening screen use, and irregular sleep schedules may amplify these effects by disrupting circadian rhythms and worsening hormonal imbalances, particularly among adolescents and adults. Additionally, obesity itself increases the risk of sleep-related breathing issues like sleep-disordered breathing (SDB) and obstructive sleep apnea (OSA), which disrupt sleep and exacerbate metabolic problems. Several studies have elaborated the biological basis of this relationship [40]. Chronic sleep deprivation alters the balance of leptin and ghrelin, increasing appetite and caloric intake [38]; however, Capers et al. [38] noted heterogeneity across studies. Short sleep also promotes fatigue, reduces activity, and increases caloric intake [39,41]. Longitudinal evidence supports these findings: in adults aged 50–71 years, sleeping fewer than five to six hours per night was associated with a 40% higher risk of developing obesity over 7.5 years [42]. Similarly, children sleeping one to two hours less than recommended had substantially higher odds of being overweight or obese [43].
While the precise mechanisms remain under investigation [41], OSA remains a key clinical mediator. Defined by recurrent upper airway collapse during sleep, OSA causes oxygen desaturation and sleep fragmentation [44,45]. This review confirms that SDB, including OSA and hypopnea, is both prevalent and severe among obese individuals [21,25,31,32], with risk increasing tenfold in those with a BMI above 29 kg/m2 [46]. Even in the absence of OSA, obese individuals often exhibit prolonged sleep latency, reduced REM sleep, and poor sleep efficiency, suggesting that obesity alone may disrupt sleep through metabolic and inflammatory pathways [47].

4.2. Age-Specific Comparisons

Among children, 23 30% are at risk for SDB or short sleep duration. Obesity significantly contributes to SDB, although its direct impact on sleep duration lessens when behavioral factors are taken into account. Dabbour et al. [31] identified obesity as a predictor of SDB, especially hypopnea and OSA. Meanwhile, Al-Hazzaa et al. [24] reported that 71% of Saudi children sleep less than nine hours at night, attributing the insufficient sleep mainly to behavioral rather than metabolic factors. Similarly, Hassan et al. [25] confirmed a bidirectional link, indicating that obese children are up to five times more likely to develop SDB, with boys being more affected. These results highlight the importance of early interventions focusing on sleep hygiene, reducing screen time, and routine screening for sleep issues, as shown in Table 3.
In adolescents, a lack of sufficient sleep is strongly linked to overweight and obesity, with prevalence rates of 20 25% among school populations. Al-Hazzaa et al. [26] found that nearly one-third of Saudi adolescents sleep less than seven hours per night. Short sleep duration is significantly associated with overweight, especially among males. Kabel et al. [27] highlighted lifestyle, hormonal, and dietary factors as significant determinants of poor sleep, while academic stress and technology use further exacerbate deprivation. Adolescence, therefore, represents a critical developmental window for interventions that promote balanced routines, stress management, and proper sleep patterns.
In adults, both obesity prevalence and OSA severity are higher, especially among men, with short sleep increasing obesity risk by almost 50%. Poor sleep quality affects roughly half of Saudi adults, sustaining a reciprocal link between sleep disruption and weight gain. Studies in university and clinical samples [23,28,29,30] have shown that inadequate sleep is associated with higher BMI, weight gain, and unhealthy behaviors, such as sedentary behavior, poor diet, and prolonged screen use. Population-level surveys [21,33] revealed low awareness of OSA and other sleep disorders, highlighting urban risk factors such as high intake of sugary beverages and reduced sleep time. Clinical research [32] further identified obesity hypoventilation syndrome (OHS), especially in women, as a frequent complication of obesity and OSA, often co-occurring with hypertension and diabetes. These findings emphasize that chronic sleep disruption may act as both a behavioral and physiological cause of obesity and metabolic disease, requiring comprehensive interventions that combine sleep hygiene, stress management, and lifestyle changes.
Across childhood, adolescence, and adulthood, the obesity sleep relationship transitions from physiological vulnerability to behavioral disruption, ultimately resulting in chronic systemic dysfunction (Figure 2). In children, SDB predominates; in adolescents, behavioral and hormonal influences drive short sleep and weight gain; in adults, chronic sleep deprivation contributes to metabolic, cardiovascular, and psychological complications. Across all life stages, inadequate sleep and obesity may reinforce one another in a self-perpetuating cycle [22,24,26,33]. Breaking this cycle requires age-specific strategies, including parental guidance and screen-time limits for children, lifestyle and stress interventions for adolescents, and metabolic and sleep health monitoring for adults. Saudi-specific habits such as late-night eating and prolonged screen use further aggravate this cycle. Promoting healthy sleep patterns may therefore serve as a core preventive measure for obesity and its comorbidities. Ultimately, this review suggests that obesity in Saudi Arabia may be closely associated with multiple sleep disorders. The underlying mechanisms involve hormonal imbalance, behavioral habits, and physiological changes that collectively worsen both sleep quality and metabolism.
While this review explored the association between sleep disorders and obesity across children, adolescents, and adults, it did not examine how these patterns track across the life course—such as whether sleep disturbances or obesity originating in childhood persist into adolescence or adulthood. Investigating these transitions requires prospective, long-term studies and remains an important area for future research. Furthermore, although the review highlights a consistent pattern of associations between obesity and various sleep disorders, these findings should be interpreted cautiously due to limitations in the underlying evidence. Most included studies were observational—primarily cross-sectional—and relied on self-reported measures of sleep and body weight. As a result, the overall certainty of evidence is low to moderate, and conclusions regarding causality or directionality remain tentative. Confounding, reporting bias, and methodological heterogeneity further limit the ability to draw definitive conclusions. Specifically, Saudi studies consistently report associations between poor sleep and obesity across age groups, but their cross-sectional design restricts causal inference [19,20,21]. In contrast, international longitudinal research supports a bidirectional relationship: short sleep increases the risk of obesity, and obesity worsens sleep disturbances, particularly sleep-disordered breathing [13,47]. These findings underscore the need for locally conducted prospective studies to clarify causal pathways and strengthen the Saudi evidence base.

5. Limitation

This review is limited by challenges in comparing sleep outcomes across studies due to varying definitions and measurement methods. Future research should account for confounders such as pubertal stage, circadian rhythm preference, and sleep duration. Several abstracts were excluded at the full-text stage, suggesting that this research area is still evolving. Most included studies were cross-sectional and relied on self-reported sleep, introducing potential recall and measurement bias. The most frequent sources of bias identified were confounding (e.g., unmeasured lifestyle factors) and outcome measurement. Additionally, restricting the search to peer-reviewed, English-language studies and excluding grey literature may have introduced selection and publication bias. The absence of a registered review protocol also limits reproducibility. While we followed PRISMA 2020 guidelines and reported our methods transparently, these constraints should be considered when interpreting the strength and generalizability of our conclusions.

6. Implications

Obesity and sleep disorders can be closely connected across all age groups, but their features vary. In children, moderate obesity can lead to SDB; adolescents exhibit a link between short sleep and obesity (~20–25%); and adults experience a higher prevalence of OSA and sleep issues related to obesity (~50% poor sleep). These results emphasize the need for age-specific strategies, such as sleep hygiene education, lifestyle changes, and obesity prevention, to lower sleep-related health risks in Saudi Arabia.

7. Conclusions

This review found consistent associations between poor sleep and obesity across age groups in Saudi Arabia, though causality cannot be confirmed due to predominantly cross-sectional data. Short sleep and irregular routines were linked to higher BMI in youth, while poor sleep quality and sleep-disordered breathing were common in obese adults. Sociocultural factors, such as late-night eating and sedentary lifestyles, may intensify these patterns. Age-specific, culturally tailored interventions are needed, along with longitudinal research to clarify causal pathways.

Supplementary Materials

The following are available online at https://www.mdpi.com/article/10.3390/jcm14248709/s1, Table S1: PRISMA-checklist.

Author Contributions

Conceptualization, A.H.A. (Abdullah Heliel Aljohani) and K.M.A.; Methodology, A.H.A. (Abdullah Heliel Aljohani), K.M.A. and A.H.A. (Amal H. Aljohani); Software, A.H.A. (Abdullah Heliel Aljohani) and K.M.A.; Validation, A.H.A. (Abdullah Heliel Aljohani) and K.M.A.; Formal analysis, A.H.A. (Abdullah Heliel Aljohani) and K.M.A.; Writing—original draft preparation, A.H.A. (Abdullah Heliel Aljohani), A.H.A. (Amal H. Aljohani) and K.M.A.; Writing—review, editing, and supervising, A.H.A. (Amal H. Aljohani). All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

This is not applicable, as this is a review article.

Data Availability Statement

The data that support the findings of this study are available from the authors upon request.

Conflicts of Interest

The authors declare that they have no conflicts of interest.

References

  1. Hruby, A.; Hu, F.B. The epidemiology of obesity: A big picture. Pharmacoeconomics 2015, 33, 673–689. [Google Scholar] [CrossRef] [PubMed]
  2. Ng, M.; Fleming, T.; Robinson, M.; Thomson, B.; Graetz, N.; Margono, C.; Mullany, E.C.; Biryukov, S.; Abbafati, C.; Abera, S.F.; et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980–2013: A systematic analysis for the Global Burden of Disease Study 2013. Lancet 2014, 384, 766–781. [Google Scholar] [CrossRef] [PubMed]
  3. Barrea, L.; Altieri, B.; Muscogiuri, G.; Laudisio, D.; Annunziata, G.; Colao, A.; Faggiano, A.; Savastano, S. Impact of nutritional status on gastroenteropancreatic neuroendocrine tumors (GEP-NET) aggressiveness. Nutrients 2018, 10, 1854. [Google Scholar] [CrossRef] [PubMed]
  4. Barrea, L.; Gallo, M.; Ruggeri, R.M.; Giacinto, P.D.; Sesti, F.; Prinzi, N.; Adinolfi, V.; Barucca, V.; Renzelli, V.; Muscogiuri, G.; et al. Nutritional status and follicular-derived thyroid cancer: An update. Crit. Rev. Food Sci. Nutr. 2020, 30, 25–59. [Google Scholar] [CrossRef]
  5. Laudisio, D.; Muscogiuri, G.; Barrea, L.; Savastano, S.; Colao, A. Obesity and breast cancer in premenopausal women: Current evidence and future perspectives. Eur. J. Obs. Gynecol. Reprod. Biol. 2018, 230, 217–221. [Google Scholar] [CrossRef]
  6. Wang, Y.C.; McPherson, K.; Marsh, T.; Gortmaker, S.L.; Brown, M. Health and economic burden of the projected obesity trends in the USA and the UK. Lancet 2011, 378, 815–825. [Google Scholar] [CrossRef]
  7. Chooi, Y.C.; Ding, C.; Magkos, F. The epidemiology of obesity. Metabolism 2019, 92, 6–10. [Google Scholar] [CrossRef]
  8. Schoenborn, C.A.; Adams, P.F. Sleep Duration as a Correlate of Smoking, Alcohol Use, Leisure-Time Physical Inactivity, and Obesity Among Adults: United States, 2004–2006. 2008. Available online: https://www.cdc.gov/nchs/data/hestat/sleep04-06/sleep04-06.htm (accessed on 31 October 2025).
  9. Born, J.; Fehm, H.L. The neuroendocrine recovery function of sleep. Noise Health 2000, 2, 25–38. [Google Scholar]
  10. Godos, J.; Ferri, R.; Caraci, F.; Cosentino, F.; Castellano, S.; Galvano, F.; Grosso, G. Adherence to the Mediterranean diet is associated with better sleep quality in Italian adults. Nutrients 2019, 11, 976. [Google Scholar] [CrossRef]
  11. Hirshkowitz, M.; Whiton, K.; Albert, S.M.; Alessi, C.; Bruni, O.; DonCarlos, L.; Hazen, N.; Herman, J.; Katz, E.S.; KheirandishGozal, L.; et al. National Sleep Foundation’s sleep time duration recommendations: Methodology and results summary. Sleep Health 2015, 1, 40–43. [Google Scholar] [CrossRef]
  12. Sperry, S.D.; Scully, I.D.; Gramzow, R.H.; Jorgensen, R.S. Sleep duration and waist circumference in adults: A metaanalysis. Sleep 2015, 38, 1269–1276. [Google Scholar] [CrossRef] [PubMed]
  13. Cappuccio, F.P.; Taggart, F.M.; Kandala, N.B.; Currie, A.; Peile, E.; Stranges, S.; Miller, M.A. Meta-analysis of short sleep duration and obesity in children and adults. Sleep 2008, 31, 619–626. [Google Scholar] [CrossRef] [PubMed]
  14. Peuhkuri, K.; Sihvola, N.; Korpela, R. Diet promotes sleep duration and quality. Nutr. Res. 2012, 32, 309–319. [Google Scholar] [CrossRef] [PubMed]
  15. Arble, D.M.; Bass, J.; Behn, C.D.; Butler, M.P.; Challet, E.; Czeisler, C.; Depner, C.M.; Elmquist, J.; Franken, P.; Grandner, M.A.; et al. Impact of sleep and circadian disruption on energy balance and diabetes: A summary of workshop discussions. Sleep 2015, 38, 1849. [Google Scholar] [CrossRef]
  16. Muscogiuri, G.; Barrea, L.; Aprano, S.; Framondi, L.; Di Matteo, R.; Laudisio, D.; Pugliese, G.; Savastano, S.; Colao, A., on behalf of the OPERA PREVENTION Project. Sleep Quality in Obesity: Does Adherence to the Mediterranean Diet Matter? Nutrients 2020, 12, 1364. [Google Scholar] [CrossRef] [PubMed] [PubMed Central]
  17. Page, M.J.; McKenzie, J.E.; Bossuyt, P.M.; Boutron, I.; Hoffmann, T.C.; Mulrow, C.D.; Shamseer, L.; Tetzlaff, J.M.; Akl, E.A.; Brennan, S.E.; et al. The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. Int. J. Surg. 2021, 88, 105906. [Google Scholar] [CrossRef]
  18. Ouzzani, M.; Hammady, H.; Fedorowicz, Z.; Elmagarmid, A. Rayyan—A web and mobile app for systematic reviews. Syst. Rev. 2016, 5, 210. [Google Scholar] [CrossRef]
  19. Jüni, P.; Loke, Y.; Pigott, T.; Ramsay, C.; Regidor, D.; Rothstein, H.; Shea, B. Risk of bias in non-randomized studies of interventions (ROBINS-I): Detailed guidance. Br. Med. J. 2016, 355, i4919. [Google Scholar]
  20. Alhusseini, N.; Elaasser, B.; Alshaar, B.; Alyousof, S.; Boukhet, S.; Omair, A. Obesity, Quality of Sleep and Anxiety in Saudi Arabia. J. Contemp. Med. Sci. 2021, 7, 235–241. [Google Scholar] [CrossRef]
  21. Alshehri, K.A.; Bashamakh, L.F.; Alshamrani, H.M.; Alghamdi, I.O.; Mahin, B.A.; Alharbi, A.A.; Alqulyti, W.M.; Alshehri, H.Z.; Alghamdi, M.T.; Alhejaili, F.F. Pattern and severity of sleep apnea in a Saudi sleep center: The impact of obesity. J. Fam. Community Med. 2019, 26, 127. [Google Scholar] [CrossRef]
  22. Abedelmalek, S.; Adam, H.; Alardan, S.; Yassin, S.; Chtourou, H.; Souissi, N. Physical Activity, Sleep Patterns and Diet Habits as Well as the Prevalence of Obesity among Adolescents: A Cross Sectional Study from Ha’il City in Saudi Arabia. Int. J. Environ. Res. Public Health 2022, 19, 16174. [Google Scholar] [CrossRef] [PubMed]
  23. Alodhayani, A.A.; Alshaikh, O.M.; Ghomraoui, F.A.; AlShaibani, T.J.; Algadheeb, A.S.; Bendahmash, A.W.; Baqays, A.A. Correlation between obesity and sleep disturbance in Saudi medical students. J. Phys. Ther. Sci. 2017, 29, 181–186. [Google Scholar] [CrossRef] [PubMed][Green Version]
  24. Al-Hazzaa, H.M.; Alhussain, M.H.; Alhowikan, A.M.; Obeid, O.A. Insufficient sleep duration and its association with breakfast intake, overweight/obesity, socio-demographics and selected lifestyle behaviors among Saudi school children. Nat. Sci. Sleep 2019, 11, 253–263. [Google Scholar] [CrossRef] [PubMed]
  25. Hassan, R. Prevalence of sleep-disordered breathing and its association with obesity among Saudi schoolchildren. J. Contemp. Dent. Pract. 2021, 21, 1022–1026. [Google Scholar]
  26. Al-Hazzaa, H.M.; Musaiger, A.O.; Abahussain, N.A.; Al-Sobayel, H.I.; Qahwaji, D.M. Prevalence of short sleep duration and its association with obesity among adolescents 15-to 19-year olds: A cross-sectional study from three major cities in Saudi Arabia. Ann. Thorac. Med. 2012, 7, 133. [Google Scholar] [CrossRef]
  27. Kabel, A.M.; Al Thumali, A.M.; Aldowiala, K.A.; Habib, R.D.; Aljuaid, S.S. Sleep disorders in a sample of students in Taif University, Saudi Arabia: The role of obesity, insulin resistance, anemia and high altitude. Diabetes Metab. Syndr. Clin. Res. Rev. 2018, 12, 549–554. [Google Scholar] [CrossRef]
  28. AL-Otaibi, H.H. Associations between sleep quality and different measures of obesity in Saudi Adults. Glob. J. Health Sci. 2016, 9, 1. [Google Scholar] [CrossRef]
  29. Rafique, N. Short sleep duration is a novel independent risk factor for overweight and obesity. Saudi Med. J. 2023, 44, 1160. [Google Scholar] [CrossRef]
  30. Mohieldein, A.H. Association between Obesity and Sleep Duration in Young Adult Saudis: A Cross-Sectional Study. Nternational J. Med. Res. Health Sci. 2020, 9, 8–14. [Google Scholar]
  31. Dabbour, M.A. The Relationship between Sleep Disordered Breathing and Obesity in a Tertiary Care Centre, Saudi Arabia. EC Pulmonol. Respir. Med. 2020, 9, 10–13. [Google Scholar]
  32. BaHammam, A.S. Prevalence, clinical characteristics, and predictors of obesity hypoventilation syndrome in a large sample of Saudi patients with obstructive sleep apnea. Saudi Med. J. 2015, 36, 181. [Google Scholar] [CrossRef] [PubMed]
  33. Alsulami, S.; Althagafi, N.; Hazazi, E.; Alsayed, R.; Alghamdi, M.; Almohammadi, T.; Almurashi, S.; Baig, M. Obesity and its associations with gender, smoking, consumption of sugary drinks, and hour of sleep among King Abdulaziz University Students in Saudi Arabia. Diabetes Metab. Syndr. Obes. 2023, 16, 925–934. [Google Scholar] [CrossRef] [PubMed]
  34. Bacaro, V.; Ballesio, A.; Cerolini, S.; Vacca, M.; Poggiogalle, E.; Donini, L.M.; Lucidi, F.; Lombardo, C. Sleep duration and obesity in adulthood: An updated systematic review and meta-analysis. Obes. Res. Clin. Pract. 2020, 14, 301–309. [Google Scholar] [CrossRef] [PubMed]
  35. Fatima, Y.; Doi, S.A.R.; Mamun, A. A Longitudinal impact of sleep on overweight and obesity in children and adolescents: A systematic review and bias-adjusted meta-analysis. Obes. Rev. 2015, 16, 137–149. [Google Scholar] [CrossRef]
  36. Norton, M.C.; Eleuteri, S.; Cerolini, S.; Ballesio, A.; Conte, S.C.; Falaschi, P.; Lucidi, F. Is poor sleep associated with obesity in older adults? A narrative review of the literature. Eat. Weight Disord. Stud. Anorex. Bulim. Obes. 2018, 23, 23–38. [Google Scholar] [CrossRef]
  37. St-Onge, M.P.; Roberts, A.L.; Chen, J.; Kelleman, M.; O’Keeffe, M.; RoyChoudhury, A.; Jones, P.J. Short sleep duration increases energy intakes but does not change energy expenditure in normal-weight individuals. Am. J. Clin. Nutr. 2011, 94, 410–416. [Google Scholar] [CrossRef]
  38. Capers, P.L.; Fobian, A.D.; Kaiser, K.A.; Borah, R.; Allison, D.B. A systematic review and meta-analysis of randomized controlled trials of the impact of sleep duration on adiposity and components of energy balance. Obes. Rev. 2015, 16, 771–782. [Google Scholar] [CrossRef]
  39. Patel, S.R. Reduced sleep as an obesity risk factor. Obes. Rev. 2009, 10, 61–68. [Google Scholar] [CrossRef]
  40. Nedeltcheva, A.V.; Kilkus, J.M.; Imperial, J.; Kasza, K.; Schoeller, D.A.; Penev, P.D. Sleep curtailment is accompanied by increased intake of calories from snacks. Am. J. Clin. Nutr. 2008, 89, 126–133. [Google Scholar]
  41. Patel, S.R.; Malhotra, A.; White, D.P.; Gottlieb, D.J.; Hu, F.B. Association between reduced sleep and weight gain in women. Am. J. Epidemiol. 2006, 164, 947–954. [Google Scholar] [CrossRef]
  42. Xiao, Q.; Arem, H.; Moore, S.C.; Hollenbeck, A.R.; Matthews, C.E. A large prospective investigation of sleep duration, weight change, and obesity in the NIH-AARP Diet and Health Study cohort. Am. J. Epidemiol. 2013, 178, 1600–1610. [Google Scholar] [CrossRef] [PubMed]
  43. Chen, X.; Beydoun, M.A.; Wang, Y. Is sleep duration associated with childhood obesity? A systematic review and meta-analysis. Obesity 2008, 16, 265. [Google Scholar] [CrossRef] [PubMed]
  44. Ogilvie, R.P.; Patel, S.R. The epidemiology of sleep and obesity. Sleep Health 2017, 3, 383–388. [Google Scholar] [CrossRef] [PubMed]
  45. Tuomilehto, H.; Seppä, J.; Uusitupa, M. Obesity and obstructive sleep apnea–clinical significance of weight loss. Sleep Med. Rev. 2013, 17, 321–329. [Google Scholar] [CrossRef]
  46. Resta, O.; Foschino Barbaro, M.P.; Bonfitto, P.; Giliberti, T.; Depalo, A.; Pannacciulli, N.; De Pergola, G. Low sleep quality and daytime sleepiness in obese patients without obstructive sleep apnoea syndrome. J. Intern. Med. 2003, 253, 536–543. [Google Scholar] [CrossRef]
  47. Xu, Q.; Lin, Z.; Chen, Y.; Huang, M. Association between sleep duration and patterns and obesity: A cross-sectional study of the 2007–2018 national health and nutrition examination survey. BMC Public Health 2025, 25, 1460. [Google Scholar] [CrossRef]
Jcm 14 08709 g001
Figure 1. PRISMA 2020 Flow Diagram for Study Selection. Flowchart illustrating the identification, screening, eligibility, and inclusion of studies in the systematic review of sleep disorders and obesity across Saudi populations.
Figure 1. PRISMA 2020 Flow Diagram for Study Selection. Flowchart illustrating the identification, screening, eligibility, and inclusion of studies in the systematic review of sleep disorders and obesity across Saudi populations.
Jcm 14 08709 g001
Jcm 14 08709 g002
Figure 2. Illustrates the obesity-sleep relationship across all age groups. Created in BioRender. johani, A. (2025) https://BioRender.com/rz1irrg (accessed on 4 December 2025). SDB: Sleep-disordered breathing, CVS: Cardiovascular disease.
Figure 2. Illustrates the obesity-sleep relationship across all age groups. Created in BioRender. johani, A. (2025) https://BioRender.com/rz1irrg (accessed on 4 December 2025). SDB: Sleep-disordered breathing, CVS: Cardiovascular disease.
Jcm 14 08709 g002
Table 1. Sociodemographic characteristics of the included participants.
Table 1. Sociodemographic characteristics of the included participants.
StudyDesignCityParticipants (n)Mean Age (Years)Age GroupMales n (%)
Alhusseini et al., 2021 [20]Cross-sectionalRiyadh111318–45Adults327 (29.4)
Alshehri et al., 2019 [21]Cross-sectionalJeddah80344.9 ± 15.9Adults454 (56.3)
Abedelmalek et al., 2022 [22]Cross-sectionalHail159812–15Children935 (55.8)
Alodhayani et al., 2017 [23]Cross-sectionalRiyadh40820.7 ± 2.3Young Adults224 (54.9)
Dabbour, 2020 [31]RetrospectiveRiyadh5110.3 ± 2.3Children26 (51.0)
Al-Hazzaa et al., 2019 [24]Cross-sectionalRiyadh10519.2 ± 1.7Children523 (49.8)
Alsulami et al., 2023 [33]Cross-sectionalJeddah65918–30Young Adults313 (47.4)
Hassan et al., 2021 [25]Cross-sectionalMadinah15289.7 ± 1.4Children842 (53.3)
BaHammam, 2015 [32]RetrospectiveRiyadh169347.7 ± 14.0Adults1076 (63.6)
Al-Hazzaa et al., 2012 [26]Cross-sectionalAl-Khobar, Jeddah, Riyadh286816.6 ± 1.1Adolescents1379 (48.1)
Kabel et al., 2018 [27]Cross-sectionalTaif106618–25Adolescents and young adults487 (45.7)
Al-Otaibi, 2016 [28]Cross-sectionalAl-Hasa23322.4 ± 9.6Young Adults0
Rafique, 2023 [29]Cross-sectionalDammam172416–22Adolescents/Young Adults768 (44.5)
Mohieldein, 2020 [30]Cross-sectionalQassim8118–46Adults59 (72.8)
Table 2. Clinical characteristics, sleep assessment methods, and obesity-related outcomes.
Table 2. Clinical characteristics, sleep assessment methods, and obesity-related outcomes.
StudyPopulationSleep
Assessment		Key OutcomesEvidence Strength *ROBINS-I Bias Rating *
Alhusseini et al., 2021 [20]General population** PSQI
(Subjective)		Obesity, insomnia, and anxiety interrelate, worsening sleep and
promoting emotional eating; poor sleep linked to obesity.		ModerateModerate
Alshehri et al., 2019 [21]General populationPSG
(Objective)		Obese individuals, especially men, show higher prevalence and
severity of OSA; Class III obesity linked to severe OSA.		HighLow
Abedelmalek et al., 2022 [22]AdolescentsATLS
(Subjective)		High obesity and overweight rates associated with diet, sleep, and activity; lifestyle modification recommended.ModerateModerate
Alodhayani et al., 2017 [23]Medical studentsESS
(Subjective)		Sleep disruption associated with weight gain; sedentary reading and lying down post-lunch increase obesity risk.ModerateModerate
Dabbour, 2020
[31]		ChildrenPSG
(Objective)		Obesity is a risk factor for SDB; hypopnea most common, followed by OSA; BMI not correlated with OSA severity.ModerateModerate
Al-Hazzaa et al., 2019 [24]Children (6–13 yrs)ATLS
(Subjective)		Short sleep linked to male sex, low paternal education, infrequent breakfast, and long screen time; obesity not significant after adjustment.HighLow
Alsulami et al., 2023 [33]University studentsATLS
(Subjective)		Obesity more prevalent in males (24%); predictors include male sex, short sleep, smoking, sugary drinks.HighLow
Hassan et al., 2021 [25]ChildrenPSQ
(Subjective)		~23% at risk for SDB; strong correlation between obesity/overweight and SDB risk.ModerateModerate
BaHammam, 2015 [32]General populationPSG
(Objective)		OSA co-occurs with obesity hypoventilation syndrome; predictors include bicarbonate levels and oxygen saturation time.HighLow
Al-Hazzaa et al., 2012 [26]Adolescents (15–19 yrs)ATLS
(Subjective)		Short sleep duration is associated with overweight and obesity among teenagers.ModerateModerate
Kabel et al., 2018
[27]		University studentsESS
(Subjective)		Sleep disturbances and EDS are linked to anemia, obesity, glucose intolerance, and high altitude.ModerateModerate
Al-Otaibi, 2016 [28]General populationPSQI
(Subjective)		Poor sleep associated with physical inactivity, high waist circumference, and obesity.ModerateModerate
Rafique, 2023 [29]General populationOnline
questionnaire (Subjective)		Short sleep duration is linked to higher BMI; sleep deprivation is an independent risk factor for obesity (OR 1.47).HighLow
Mohieldein, 2020 [30]General populationSelf-reported (Subjective)7–8 h of sleep may reduce obesity risk; healthy sleep promotes better lifestyle choices.ModerateModerate
* Evidence Strength is a qualitative judgment based on overall study design, sample size, objectivity of sleep assessment (e.g., PSG vs. self-reported), and alignment with review outcomes. * ROBINS-I Bias Rating reflects formal risk-of-bias assessments per the ROBINS-I tool across seven domains (confounding, selection, classification, etc.). ** PSQI—Pittsburgh Sleep Quality Index, PSG—Polysomnography, ESS—Epworth Sleepiness Scale, ATLS—Arab Teens Lifestyle Study questionnaire, PSQ—Pediatric Sleep Questionnaire, SDB—Sleep-Disordered Breathing, OSA—Obstructive Sleep Apnea, EDS—Excessive Daytime Sleepiness.
Table 3. Comparative summary of sleep–obesity associations across age groups in the included studies.
Table 3. Comparative summary of sleep–obesity associations across age groups in the included studies.
CategoryChildrenAdolescentsAdults
Main FocusPhysiological effects of obesity on sleep, especially sleep-disordered breathing (SDB)Behavioral and hormonal influences on sleep duration and weight statusLifestyle, psychological stress, and chronic health outcomes linked to sleep and obesity
Common Sleep ProblemsSDB, habitual snoring, short sleep durationIrregular sleep schedules, poor sleep hygiene, delayed sleep phaseInsomnia, poor sleep quality, obstructive sleep apnea (OSA), obesity hypoventilation syndrome (OHS)
Relationship to ObesityObesity increases SDB risk, but not always directly tied to short sleepShort sleep duration strongly associated with overweight and obesityStrong bidirectional association; poor sleep predicts higher BMI, weight gain, and metabolic dysfunction
Contributing FactorsHigh screen time, inconsistent sleep routines, family habitsHormonal fluctuations, late-night device use, academic and social pressuresSedentary behavior, stress, caffeine intake, unhealthy diet, long work hours, prolonged screen use
Gender DifferencesBoys more prone to SDBMales exhibit higher obesity rates and shorter sleepWomen more affected by OHS; stress and lifestyle contribute across genders
Health ImplicationsRespiratory issues, fatigue, reduced cognitive performanceWeight gain, mood disturbances, and decreased academic achievementHypertension, diabetes, metabolic syndrome, and depression
Recommended InterventionsParental oversight, screen-time regulation, early SDB screeningSleep education, stress reduction, promoting consistent routinesWorkplace wellness programs, stress management, sleep hygiene promotion
Overall InsightSleep–obesity link primarily driven by physiological mechanismsBehavioral and hormonal disruptions reinforce obesity riskComplex metabolic and psychosocial feedback loops sustain obesity and poor sleep
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

Share and Cite

MDPI and ACS Style

Aljohani, A.H.; Aljohani, A.H.; Alshammari, K.M. Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review. J. Clin. Med. 2025, 14, 8709. https://doi.org/10.3390/jcm14248709

AMA Style

Aljohani AH, Aljohani AH, Alshammari KM. Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review. Journal of Clinical Medicine. 2025; 14(24):8709. https://doi.org/10.3390/jcm14248709

Chicago/Turabian Style

Aljohani, Amal H., Abdullah Heliel Aljohani, and Khalid Mohammed Alshammari. 2025. "Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review" Journal of Clinical Medicine 14, no. 24: 8709. https://doi.org/10.3390/jcm14248709

APA Style

Aljohani, A. H., Aljohani, A. H., & Alshammari, K. M. (2025). Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review. Journal of Clinical Medicine, 14(24), 8709. https://doi.org/10.3390/jcm14248709

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop