The answer is the non-exercise activity thermogenesis. Energy expended from fidgeting is called the non exercise activity thermogenesis (neat). Basal metabolic rate is the energy expended to support metabolism. Thermic effect of food (tef) is the energy expended for the digestion, absorption, and metabolism of nutrients.
You have to research these in order to get your answer
Maybe because that person is just using you and the fact they use u bc u don’t see it till later
The earliest hominins probably lived in an extreme kind of environment.