What is a common error in studies attempting to link solar activity to health?

Answer

Confusing statistical correlation with direct causation

Many research efforts exploring connections between space weather and health rely on retrospective studies. These studies look at hospital records and attempt to match them with periods of high solar activity. A major methodological flaw is the confusion of correlation—events happening at the same time—with causation, as these studies often fail to account for other influential variables such as daily weather, economic factors, or seasonal shifts.

What is a common error in studies attempting to link solar activity to health?

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