Quote:
Originally Posted by carolr3639
Hunger and satisfaction is how people lived for thousands of years. That being said, your weight loss may have signaled your body that it has been in a famine and that is the reason for your increased hunger.
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I'm not sure this is true. I think that for millions of years, we ate when food was available. Some ate more than others, and the ones who had the ability to eat more than they needed may have even had the advantage. Calories just weren't abundant enough to get obese.
Until very recently (only about the last 60 years or so), humans had to burn quite a lot of calories just to survive. If you didn't move, you didn't eat. You also had to burn a lot of calories just to maintain body temperature (in winter).
The human body isn't much different than animal bodies, and when you take away the NEED to burn calories to acquire them, animals get fat. Polar bears who have access to human dumps - get fat and sick, because they go for the "easy calories." Many animals in zoos get fat if they're allowed to eat as much as they want, because they don't have to burn calories to get calories (or to avoid being calories for some other critter).
I don't think hunger was the primary mechanism by which people maintained a healthy weight - I think the environment played a much bigger role. People didn't get fat because food wasn't abundant enough or "cheap" enough (not only in terms of money but also energy expenditure) to allow many people to get fat.
In the 1940's, during WWII Nutella (essentially a spreadable candy bar) was developed as an inexpensive "health food," because calorie- shortage (underweight) was still the primary souce of malnourishment.
Food hasn't ever been so inexpensive and easily accessible. And birth control also hasn't ever been so common (in the natural world when food supplies are unnaturally abundant, overpopulation occurs before widespread obesity).
If we were eating all-natural food, and performing all-natural behaviors to acquire that food (and avoid becoming food), in an all-natural environment without artificial birth/population control, then our natural instincts would probably be sufficient.
However, since our environment is so artificial, the means by which we have to regulate our healths also have to become increasingly artificial (ironically to mimic the natural).