Social stress costs you 104 calories per meal:
Your brain runs a budget for your body, and it is budgeting glucose, salt, oxygen and water.
Get socially stressed within two hours of a meal and you metabolize that food less efficiently, burning the equivalent of 104 extra calories. Over a year that is 11 pounds.
Being with a friend you trust runs the other way: everything you do is slightly less metabolically expensive.
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