What is the main scientific difficulty in establishing a clear cause-and-effect relationship between geomagnetic storms and health outcomes?

Answer

Isolating the geomagnetic variable from countless other influencing factors like stress or diet

Establishing causation is challenging because human health is influenced by numerous confounding factors, including stress, diet, and regular weather changes, making it difficult to pinpoint the specific contribution of minor geomagnetic field shifts.

What is the main scientific difficulty in establishing a clear cause-and-effect relationship between geomagnetic storms and health outcomes?
effectsspace weathergeomagnetic stormsEarth's magnetic fieldhuman behavior