youre distant ancestors chased every meal they ate. your more recent centuries old ancestors probably worked 6.5 day weeks, 12 hour shifts, and had to have all the children working as well, for a pittance. YOU on the other hand have no problem finding any kind of out-of-season food and probably drive everywhere, barely lifting a finger in comparison. THIS IS THE DIFFERENCE.

Why were there no obese (poor) people 100 years ago?