SnooPuppers1978 t1_j6n1esl wrote
Reply to comment by CatsRinternet in New study (n = 15,764) shows repeated concussions are linked to worse brain function in later life by unswsydney
Not necessarily. Brain not working well could cause concussions to happen due to different risk evaluation.
That's why the used the word "may". They wouldn't know for sure which way the causation is.
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