> Then how come obesity basically didn't exist until the 70s while 1 in 2 American is now obese ? probably more Americans spent time physically working, and no

> Then how come obesity basically didn't exist until the 70s while 1 in 2 American is now obese ? probably more Americans spent time physically working, and not sitting 10h/d in office and another 2h in the car commuting. > Especially rich folks who have access to infinite amount of food I am sure there are obese rich, also rich likely in general have more willpower to control their instincts, and that's partially how they become rich.