The heliobiology evidence base, organized

The Influence of Geomagnetic Storms on the Risks of Developing Myocardial Infarction, Acute Coronary Syndrome, and Stroke: Systematic Review and Meta-Analysis

Journal of Medical Physics

Meta-analysis confirming MI/ACS risk rises 1.3–1.5× during geomagnetic storms and stroke risk rises 1.25–1.6×, concentrated in patients with diabetes, metabolic syndrome, or prior cardiovascular disease.

Geomagnetic disturbances driven by solar activity enhance total and cardiovascular mortality risk in 263 U.S. cities

Environmental Health

263-city US population-scale analysis demonstrating geomagnetic disturbances enhance both total mortality and cardiovascular-specific mortality at population scale.

Geomagnetic Storms Can Trigger Stroke

Stroke (AHA Journals)

Documented stroke risk rises 19% at Ap≥60 and up to 52% during severe storms, with younger adults showing particular vulnerability.

Scoping review of geomagnetic activity and cardiovascular events

Cureus

Scoping review covering the modern cardiovascular literature: 28 of 36 reviewed studies report significant correlations between geomagnetic activity and cardiovascular events.

The effect of geomagnetic activity on cardiovascular parameters

Biomedicine & Pharmacotherapy

Foundational reference for the modern cardiovascular-and-geomagnetic-activity literature. Stoupel’s lineage established the cardiovascular focus that the field has since validated at population scale.

Geomagnetic storm under laboratory conditions: randomized experiment

Science of the Total Environment

Harvard-affiliated Normative Aging Study (n=809) demonstrating HRV r-MSSD drops 14.7 ms and SDNN drops 8.2 ms on high-Kp days, surviving full autocorrelation correction and confounder adjustment.

Long-term study of heart rate variability responses to changes in the solar and geomagnetic environment

Scientific Reports

72-hour continuous HRV monitoring across 16 subjects over five months, demonstrating graded autonomic responses to solar and geomagnetic shifts even during quiet periods (not just named storms).

Effects of geomagnetic disturbances on capillary blood flow in ischemic heart disease patients

Biophysics

Historical reference establishing the Russian cardiology lineage that documented blood pressure and capillary-flow effects in cardiovascular patients. Foundational to the modern Harvard cohort work.

Geomagnetic activity, solar wind, and B-complex vitamins in elderly men

Scientific Reports

First major modern paper documenting biochemistry-level effects: plasma B-complex vitamin levels modulate with solar activity in the same Harvard cohort. Biochemistry-level findings are hard to explain as autocorrelation artifacts.

Geomagnetic and solar activity associations with cognitive function

Science of the Total Environment

First major modern paper extending heliobiology to cognitive function, with full statistical safeguards. A different physiological axis showing the same direction of finding as the HRV and cardiovascular literature.

Changes in the circadian melatonin synthesis in the pineal gland of animals exposed to extremely low frequency electromagnetic fields

Frontier Perspectives

Historical reference for the ELF-EMF and melatonin suppression hypothesis. The animal-model findings have been partially but not fully replicated; the framework still informs modern sleep-and-space-weather research.

Geomagnetic disturbances are associated with reduced nocturnal excretion of a melatonin metabolite in humans

Neuroscience Letters

Human-cohort evidence that geomagnetic disturbance reduces nocturnal melatonin excretion. Mechanism-relevant for the sleep-architecture and HRV effects documented during storms.

Reduced excretion of a melatonin metabolite in workers exposed to 60 Hz magnetic fields

American Journal of Epidemiology

Occupational-exposure evidence parallel to the geomagnetic findings: workplace EMF exposure correlates with reduced melatonin metabolite excretion. Contextualizes the broader EMF-and-melatonin literature.

Geopsychology and geopsychopathology: Mental processes and disorders associated with geochemical and geophysical factors

Experientia

Foundational reference proposing geomagnetic modulation of mood and psychiatric presentation via melatonin/serotonin pathways. Modern work has refined the framework but not overturned the underlying observation.

Solar and geomagnetic activity, extremely low frequency magnetic and electric fields and human health at the Earth’s surface

European Journal of Applied Physiology

The 2020 statistical critique that raised autocorrelation as a methodological concern in the older heliobiology literature. The critique was useful methodologically; the broader interpretation that the field is mostly noise is not supported by modern post-correction work.

Controlling the false discovery rate: a practical and powerful approach to multiple testing

Journal of the Royal Statistical Society B

Foundational statistical reference for FDR correction across multiple comparisons. Now standard practice in modern heliobiology analyses that test many drivers against many biomarkers.

Spurious regressions in econometrics

Journal of Econometrics

The original paper on what happens when you correlate autocorrelated time series without correction — the statistical issue the 2020 heliobiology critique applied to the field. Decades-old, well-established in time-series statistics.

Historiometric analysis of solar-cycle correlations with biological and social phenomena

Various

Foundational work coining the term "heliobiology" and documenting statistical correlations between the 11-year solar cycle and biological events. The methodological execution has been refined since; the underlying observation of correlation has been validated repeatedly.

Chronomedicine

Comprehensive Human Physiology (Springer)

Standard chronobiology reference that established the modern HRV-and-geomagnetic-activity research lineage. The Minnesota school of chronobiology has been continuously active for decades.

A nearly universal solar wind-magnetosphere coupling function inferred from 10 magnetospheric state variables

Journal of Geophysical Research

Foundational paper deriving a coupling function that estimates solar-wind-to-magnetosphere energy transfer from upstream measurements. Widely cited in modern space-weather physics.

On the effects in cosmic-ray intensity observed during the recent magnetic storm

Physical Review

The original Forbush decrease paper — documenting the sudden drop in galactic cosmic ray flux at Earth during passing CMEs. Foundational to the cosmic-ray modulation literature.

The standardized index, Ks, and the planetary index, Kp

IATME Bulletin

The original Kp index definition paper. Kp remains the field’s standard quick-look geomagnetic disturbance index nearly 90 years later.