Is there any plausible mechanism for solar flares affecting the health of people on the ground?

[LarsKnowles]

Recently, I'm noticing that every news article that pops up in my MSN feed about an upcoming solar flare will mention somewhere in the article that solar flares cause health problems to people on the ground. This would seem to go against what we know about physics, as the radiation from solar flares is blocked by Earth's magnetic field and atmosphere and does not reach the ground.

 

 https://ui.adsabs.harvard.edu/abs/2014cosp...40E1114G/abstract#:~:text=It was shown statistically that,comparison with quiet geomagnetic conditions

 

https://www.newscientist.com/article/2324402-solar-storms-may-cause-up-to-5500-heart-related-deaths-in-a-given-year/

 

https://blogs.biomedcentral.com/on-health/2019/09/19/geomagnetic-disturbances-and-cardiovascular-mortality-riskutm_sourcebmc_blogsutm_mediumreferralutm_contentnullutm_campaignblog_2019_on-health/

 

https://www.mdpi.com/2073-4433/12/3/306

 

These are a couple examples. Is there any plausible mechanism through which solar flares can affect our health on the ground or is this pseudoscience? A lot of the studies in this field, known as "Heliobiology", mention things such as "Schumann resonance" and the "pineal gland" which I am aware are terms that are often used in woo papers. For instance, the MDPI paper published by the journal "Atmosphere" mentions "Schumann Resonance" five times. Whatever the case, it seems to be gaining traction in mainstream newspapers as of late.

 

During geomagnetic storms (which are caused by solar flares), Earth's magnetic field fluctuates at a rate of over 50 nanotesla (nT) per minute. During "extreme" geomagnetic storms, the rate can be up to 500 nT per minute. Is there any plausible mechanism that magnetic fluctuations at this rate and amplitude can affect people's health?

Edited February 20 by LarsKnowles