Potential influence of geomagnetic activity on blood pressure statistical fluctuations at mid-magnetic latitudes

Authors: He P, Li C, Xu M, Guo R, Degeling AW, Pitk�nen T, Bu Y, Zheng X, Zhang Y, Jia X, Tian A, Han C, Wang S, Chen T, Fang J, Sun S, Liu W, Cao J, Quan K, Cong Z, Ma D, Zong Q, Fu S, Yao S, Zhang H, Shi Q

Year: 2025 Apr 28

Category: Epidemiology

Journal: Communications Medicine (London)

DOI: 10.1038/s43856-025-00822-w

URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC12038039/

Abstract

Overview

Solar and geomagnetic activity, impacted by the sun's dynamics, are increasingly recognized for their influence on human biological rhythms and cardiovascular function. Despite interest in the fluctuations of blood pressure (BP) relative to geomagnetic activity (GMA), the isolated effects and mechanisms remain unclear.

Methods

  • Six-year time series analysis using over 500,000 BP measurements from Qingdao and Weihai, China (mid-magnetic latitudes)
  • Statistical analysis explored correlations between the GMA (Ap index) and BP, including quasi-periodic fluctuations
  • Comparisons made with other environmental factors: air temperature and PM2.5

Findings

  • Statistical BP fluctuations correlate with GMA.
  • Both BP and GMA index have similar annual bimodal and multiple periodicities (12-month, 6-month, and intermittent 3-month cycles).
  • Contrarily, air temperature and PM2.5 did not show similar periodicities or 3-month cycles.
  • Years with higher GMA showed stronger, more rapid BP correlations (especially with Ap index).
  • Females’ BP appeared more strongly correlated with GMA than males.

Conclusion

  • The study highlights increased risks for individuals with hypertension during high GMA periods.
  • Deepens understanding of GMA’s impact on human health.
  • Findings carry implications for clinicians and policymakers regarding the clinical significance of geomagnetic environments.

Plain Language Summary

Blood pressure fluctuates for many reasons—including hormonal and environmental factors. Geomagnetic activity, driven by changes in Earth’s magnetic field due to solar forces, may also impact blood pressure. Using six years of data, this study finds a connection between periods of high geomagnetic activity and increased blood pressure, stressing the importance of this relationship for hypertension assessment and health management.

geomagnetic activity blood pressure cardiovascular health environmental influences hypertension human health mid-magnetic latitudes
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