Why does straining bicep muscles make them stronger, but straining eye muscles make them weaker?
In: Biology
Working muscles do strengthen them involves doing enough work to create microtears that get repaired. Over longer times, this results in the strengthening of muscles. However just working them doesn’t do anything to strengthen them, it just makes you tired. Straining your eyes works much like that, as some other comments have mentioned. They do work, but not necessarily beneficial/developmental work.
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