There were 2 middle aged Chinese guys from China,

but all died of lung cancer. One was from An Hui, came to the Us for PHD, got a good job, married early and got 2 sons. Another was from Si Chuan, came to the US for long time, worked at a computer company, just married. Both of them were short and skinny and born in the countryside, the poor families. The Si Chuan 's was very frugal. The Anhui one I do not know about( he was husband of my friend. But they lived far away from CA. I never met him). I think both of them lacked of nutrition.