Behaviour changes, aching muscles in the morning, mood swings that make no sense? How about the odd shifts in People around you? Outright insanity in some cases?
There's always the drug, pharma, and brain physiological and physiochemical issues. However, the solar activity and magnetosphere have great affect on the nervous system and the brain.
This is Link for KP index health effects chart:
https://spaceweathernews.com/space-weather-health-alerts/
Verte-Arbusto on Schumann Resonance:
https://youtube.com/c/VerteArbustosSchumannResonanceHarmonics
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