Why do married women live longer free, and vice versa man ( SM ) ?

In my house there are three men, one of whom well over 80 years, and the other two at 80 tonnes! (All have been married, but in time razvelis- to 40 years) and they are alive !!!Their zhenatiki- peers have long been on pogosti lay down.I'm pretty dense communicate with these free men (playing chess), lonely call their language does not turn, one of them a professor of genetics, so he then told me that as a yes.And on the bench at the entrance to Old ladies sitting, fun talk, but not about the deceased supruzhnika and the works nasuschnyh- discussing my mistresses, for example, or when tired of the problems Housing.Funny vyhodit..ochen funny.Here are babulki- yagulki sitting:

Scientists have learned to predict the life expectancy of the mitochondria ?

Scientists have learned to predict the life expectancy of the mitochondria, How ??