I have a book and several articles written by a man born in 1820 in a small East Lancashire village. He was a social historian and prolific collector of family tit bits from around his village and surrounding areas. He wrote throughout his life. He was in his late 90's when he died (having recently married his much, much younger housekeeper). He mentions a few times that if one can pass the measles stage without mishap, and survive childbirth, one tends to live to a ripe old age.