If weight loss is simply cals in / cals out, why do post menopausal women have a harder time losing weight?

Question

Same goes for older people in general. Is it harder to lose weight because they simply move less? What’s happening that makes weight loss so much harder in 30s and above?

In: Biology

Answer 1

Because unless you’re spending 8 hours a day doing strenuous exercise, the vast majority of your “calories out” are from your basal metabolic functions, and you BMR goes down as you age.