Space weather phenomena on heart rate: a study in the Greek region

Papailiou, M.; Ioannidou, Sofia; Tezari, Anastasia; Lingri, D.; Konstantaki, Maria; Mavromichalaki, H.; Dimitrova, S.

doi:10.1007/s00484-022-02382-3

Cited by 8 publications

(6 citation statements)

References 27 publications

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“…Geomagnetic disturbances and variations in cosmic ray activity can have an impact on the human physiological state and affect the variability of HR. The results obtained in this study are in accordance with results from similar studies [18,19,25], where it was concluded that intense geomagnetic activity and strong CRI decreases are connected to an HR increase. The novelty of this study is that HR data were analyzed during different phases of the solar cycle 24.…”

Section: Conclusion and Discussionsupporting

confidence: 92%

“…For 132 individuals (10%), data concerning their gender were not obtained. The Holter electrocardiogram method was used for obtaining the hourly mean HR of the group of individuals (for more details on the Holter method see [25]).…”

Section: Medical Datamentioning

confidence: 99%

“…In continuation of the above-mentioned investigation, more data were included in the analysis and new results were presented in [25]. In this second stage of the analysis, HR data from 1318 individuals were evaluated from 2011 to 2018.…”

Section: Introductionmentioning

confidence: 99%

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Geomagnetic and Cosmic Ray Activity Effect on Heart Rate during the Solar Cycle 24

Papailiou,

Ioannidou,

Tezari

et al. 2024

Atmosphere

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The number of investigations relevant to the study of geomagnetic activity, solar events, and cosmic rays, i.e., space weather phenomena, and their impact on human health has increased dramatically over the past few years. Numerous studies examine the reaction of the cardiovascular, nervous, and other functional systems to variations observed in geospace. These studies examine the behavior of human physiological parameters not only during different levels of activity of the Sun and in the interplanetary space (from no activity to remarkably intense activity) but also through geomagnetic activity storms and Forbush decreases. Here, individuals from the Hippocratio General Hospital in Athens, the cardiology clinics of Nikaia General Hospital in Piraeus, and the Heraklion University Hospital in Crete, Greece, were assessed during the time period from 2011 until 2018. The heart rate of the individuals was recorded every hour via the Holter electrocardiogram method. Data were analyzed using the analysis of variance (ANOVA) and the method of superimposed epochs. The investigation covers not only the ascending but also the descending phase of the solar cycle 24 (lasting until 2019 and with its maximum in the year 2014).

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Section: Conclusion and Discussionsupporting

confidence: 92%

Section: Medical Datamentioning

confidence: 99%

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Geomagnetic and Cosmic Ray Activity Effect on Heart Rate during the Solar Cycle 24

Papailiou,

Ioannidou,

Tezari

et al. 2024

Atmosphere

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“…usually increase for high levels of geophysical activity [49]. In fact, higher HR values are observed for the highest GMA levels, i.e., levels III and IV of the Dst index classification, while small or even no variations are recorded for the lowest GMA levels, i.e., levels I0, I and II of the Dst index classification [42,47,50]. This behavior is observed in Figure 2 for women, where indeed the maximum HR value is registered for Dst index level IV, but not for men.…”

Section: Resultsmentioning

confidence: 94%

“…For the time period from April 2011 to January 2018 (i.e., solar cycle 24), 534 women with a mean HR of 72.5 ± 0.8 bpm and 687 men with a mean HR of 70.3 ± 0.6 bpm were examined. Daily HR data were obtained with a Holter electrocardiogram [42].…”

Section: Medical Datamentioning

confidence: 99%

Space Weather Effects on Heart Rate Variations: Sex Dependence

Papailiou,

Mavromichalaki

2024

Atmosphere

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The effects of solar activity and the accompanying space weather events on human pathological conditions, physiological parameters and other psycho-physiological disturbances have been analyzed in numerous recent investigations. Moreover, many of these studies have particularly focused on the different physical reactions humans have, according to their sex, during variations in the physical environment. In the framework of the above, this work analyses heart rate data obtained from volunteers (687 men and 534 women) from three different regions (Athens, Piraeus and Heraklion) of Greece in relation to the geophysical activity and variations of environmental factors. Dst index and Ap index data, along with cosmic ray intensity data derived from the Athens Neutron Monitor Station (A.Ne.Mo.S.), were used. The study expands from April 2011 to January 2018, covering solar cycle 24. The ANalysis Of Variance (ANOVA) and the superimposed epochs methods were used in order to examine heart rate variations depending on sex. Results revealed that women tend to be more sensitive to physical environmental changes. Statistically significant results are related to the geomagnetic activity but were not obtained for cosmic ray variations.

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Variations of cosmic ray intensity with the solar flare index, coronal index, and geomagnetic indices: Wavelet and cross correlation approaches

Idosa

Giri²,

Adhikari³

et al. 2023

Physics of Plasmas

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In this study, the cosmic ray stuff and its associations with the solar flare index, coronal index, and geomagnetic indices, such as Kp, auroral electrojets, Ap, disturbance storm time (Dst), polar cap, Lyman-alpha, Hp60, and Ap60 indices, were studied using wavelet-based approaches over KIEL and MOSC stations during 2003 and 2004. The cosmic ray data used in this study were obtained from ground-based neutron monitor stations. Different sources are also used to get data on the different indices used in this study. The yearly variation in cosmic ray intensity revealed that the intensity of cosmic rays over KIEL and MOSC stations was greater in 2004 and lower in 2003. This variation might be due to the ring current's asymmetry, which causes an enormous asymmetry in the storm-time cosmic-ray increase. The wavelet coherence transform shows a positive and negative correlation as well as cosmic ray lags with solar flares and coronal indices throughout different months of the 2003 and 2004 periods over both suggested stations. The results of cross correlation indicate that cosmic ray intensity is positively correlated with all geomagnetic indices. However, cosmic ray intensity was negatively associated with the Dst index during 2003 and 2004 over both suggested stations. Moreover, multi-resolution analysis and power spectral density (PSD) analysis are consistent with wavelet analysis. Using the PSD result, we have seen high-power wavelet regions during geomagnetically quiet months and low-power wavelets during disturbed months at a common frequency over both stations during 2003 and 2004.

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Space weather phenomena on heart rate: a study in the Greek region

Cited by 8 publications

References 27 publications

Geomagnetic and Cosmic Ray Activity Effect on Heart Rate during the Solar Cycle 24

Geomagnetic and Cosmic Ray Activity Effect on Heart Rate during the Solar Cycle 24

Space Weather Effects on Heart Rate Variations: Sex Dependence

Variations of cosmic ray intensity with the solar flare index, coronal index, and geomagnetic indices: Wavelet and cross correlation approaches

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