# Correlation between Changes in Local Earth’s Magnetic Field and Cases of Acute Myocardial Infarction

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## Abstract

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## 1. Introduction

#### 1.1. Cell Regulation

#### 1.2. Regulation of Cardiovascular System

#### 1.3. Geomagnetic Field and Melatonin

## 2. Materials and Methods

#### 2.1. Participants

#### 2.2. Magnetometer Data

^{2}in five different frequency ranges where overlaps between the Schumann resonance and EEG frequency ranges (we named them as SDelta (0; 3.5 Hz), STheta (3.5; 7 Hz), SAlpha (7; 15 Hz), SBeta (15; 32 Hz), and SGamma (32; 66 Hz) to distinguish them from the EEG bands).

#### 2.3. Spectral Analysis of the Magnetometer Data

#### 2.4. Statistical Analysis

## 3. Results

## 4. Study Limitations

## 5. Discussion

## 6. Conclusions

- Both male and female cases of MI are related to seasonal changes of local geomagnetic field.
- In the first and second half of the year, correlations vary in all studied patient groups.
- In the younger males group and in the elderly males group, correlations varied between cases of MI and geomagnetic field activity.
- Lower number of myocardial infarction cases has negative correlation with the changes in local geomagnetic field (SDelta, STheta, SAlpha, SBeta frequency ranges).
- The changes in the local geomagnetic field high frequency (SGamma) range are correlated with a higher number of myocardial infarction cases.

## Acknowledgments

## Author Contributions

## Conflicts of Interest

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**Figure 1.**The changes of power of local Earth’s magnetic field in Lithuania (GCI003) during 2014–2017 years.

**Figure 2.**Schumann resonances 24 April 2016 through 30 April 2016 for magnetometers GCI003—Lithuania; GCI004—Canada; GCI005—New Zealand; and GCI006—South Africa.

**Figure 5.**Correlation between number of weekly MI cases in women and mean magnetic power in different frequency ranges spanning a time of one week (data from LUHS, Cardiology clinic, 2016),

*****p < 0.05.

**Figure 6.**Correlation between men’s weekly MI number and mean magnetic power in different frequency ranges spanning a time of one week (data from LUHS, Cardiology clinic, 2016),

*****p < 0.05.

**Figure 7.**Correlation between number of women weekly cases of MI and mean magnetic power in different frequency ranges spanning a time of one week (data from LUHS, Cardiology clinic, 2016),

*****p < 0.05.

**Figure 8.**Correlation between number of men weekly cases of MI and mean magnetic power in different frequencies for first and second half of year 2016 (data from LUHS, Cardiology clinic, 2016 year),

*****p < 0.05.

**Figure 9.**Correlation coefficients between number of men and women weekly cases of MI and mean magnetic power in different frequencies for older (>63 years) men group and women group for all year 2016. Difference between genders is non-significant.

**Figure 10.**Correlation between number of men weekly cases of MI and mean magnetic power in different frequencies for younger (<63 years) men group for first and second half for year 2016 (data from LUHS, Cardiology clinic, 2016), * p < 0.05.

**Figure 11.**Correlation between number of men cases of MI per week and mean magnetic power in different frequencies for older (>63 years age) men group for first and second half for year 2016 (data from LUHS, Cardiology clinic, 2016).

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**MDPI and ACS Style**

Jaruševičius, G.; Rugelis, T.; McCraty, R.; Landauskas, M.; Berškienė, K.; Vainoras, A.
Correlation between Changes in Local Earth’s Magnetic Field and Cases of Acute Myocardial Infarction. *Int. J. Environ. Res. Public Health* **2018**, *15*, 399.
https://doi.org/10.3390/ijerph15030399

**AMA Style**

Jaruševičius G, Rugelis T, McCraty R, Landauskas M, Berškienė K, Vainoras A.
Correlation between Changes in Local Earth’s Magnetic Field and Cases of Acute Myocardial Infarction. *International Journal of Environmental Research and Public Health*. 2018; 15(3):399.
https://doi.org/10.3390/ijerph15030399

**Chicago/Turabian Style**

Jaruševičius, Gediminas, Tautvydas Rugelis, Rollin McCraty, Mantas Landauskas, Kristina Berškienė, and Alfonsas Vainoras.
2018. "Correlation between Changes in Local Earth’s Magnetic Field and Cases of Acute Myocardial Infarction" *International Journal of Environmental Research and Public Health* 15, no. 3: 399.
https://doi.org/10.3390/ijerph15030399