Why are we less likely to move if it’s hot outside?
In: Biology
The heat makes you feel lazier and slower. Your muscles also relax.
When you are cold your muscles tense up and you usually move faster (to try and warm up).
Because moving warms you up (you feel this during intense exercise, less strenuous activity has smaller effect, but it’s there) and your body doesn’t want to get too hot.
Moving requires contraction (and, granted, relaxation) of muscles. This requires energy to perform. Some of this energy goes into actually contracting the muscle, but the rest of it causes us to heat up. This causes us to heat up. This is undesirable if you are presently warm.
We abuse this when we are cold by shivering, and this rapid contraction of muscles can generate a solid amount of heat to the shivering area.
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