slmn11: Absolutely! I frequently feel the urge to overeat, and DO overeat when I will be somewhere that I don't think there will be any food. I'm trying to work on that now, actually.
One thing that helps is if I take a snack that I know will fill me up enough that I won't be hungry (a Clif bar, some almonds and a tangerine, etc.).
Another thing that I've found helps is to never let myself get too hungry. Then that mindset kicks in where I'm like, "OMG, there's no food. I have to find food." No idea why. It's baffling. Consciously I know I'll never starve, but subconsciously I know no such thing. Carrying a snack helps with this, too. Then I can nibble on it, or I at least know it's there if needed.
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And on the topic of natural thinness, I do think there is something to the whole genetics thing. Some people honestly need less food to be a certain weight, some people are predisposed to eat more/less and move more/less. But a lot of it is also environment (transportation, available foods, income, culture, family, etc.) and how you were raised. Kids who are overweight/obese are much more likely to remain so as adults.
I think some of it is genetics and a lot is environment, and that habits are very, very important. I think naturally easily-gain-weight people can lose the weight, but it would take a drastic life change that many cannot or will not do.
lin43: And as for the differences between now and the 1930s or 40s, I think in earlier decades food was not as abundant or easily accessible, normal portions were smaller, and people had to move a lot more (fewer people owned cars, people grew their own food, more physical-work jobs, etc.). So those things kept genetics/predispositions in check in a way.



