Do you think it is because the people before were mentally stronger? No, it is because they lived in a different environment. If you were to transport those people from decades ago to today, the same portion of them would become obese.
That's what I'm saying. It's not that people were stronger then, it's that, as many times throughout life, traits are revealed by circumstances, there's nothing particularly physiological about feeling the need to eat like hippopotamuses that have been deprived of food for months.
The unattractive, low-status man (or woman) has less trouble remaining faithful than the handsome, high-status man (or woman). Not because they are more virtuous, but because they are not as exposed to temptation. But fewer people justify the unfaithful than the “big eater.” And that's something society and culture have decided, for now.
That's what I'm saying. It's not that people were stronger then, it's that, as many times throughout life, traits are revealed by circumstances, there's nothing particularly physiological about feeling the need to eat like hippopotamuses that have been deprived of food for months.
The unattractive, low-status man (or woman) has less trouble remaining faithful than the handsome, high-status man (or woman). Not because they are more virtuous, but because they are not as exposed to temptation. But fewer people justify the unfaithful than the “big eater.” And that's something society and culture have decided, for now.