Quote Originally Posted by Papewaio View Post
The thing we haven't had time to adjust too is the modern knowledge worker who toils at a PC. Lack of exercise is the newest phenomena and would be the key bit to realign with what our grandparents and near ancestors did. So Pre-industrial revolution energy expenditure would be where I'd look for quick lifestyle wins not 10,000 year old diets.
Then you have the problem of explaining manual labourers in western countries, who probably do much harder physical labour than our grandparents, who have very high incidences of CHD and obesity. Exercise, although very good for you, isn't the silver bullet.