Pollution in China

I guess that in days back people could eat pure oil mixed with fat and don't have weight problems.

First reason - most of them burned lots of energy during daily activities (not so many before-screen sitters, right).

Second reason - they rarely had snacks between meals, if any, so their digestive systems worked like well adjusted shutters (to compare with) and weren't overloaded all the day (and some - also night) with excessive amounts of food.
 
Back
Top Bottom