The International Journal of Epidemiology reports research that shows smart people live longer and the reasons are genetic. Good genes lead both to health and intelligence.
I've noticed that my former colleagues at the university tend to live to be quite old, many into their 90s. I read their obits in the campus news.
Do smart people live longer because they make better life choices? I'll bet that is part of the answer. Another part is simply having fewer genetic defects, predispositions to various ills that kill people before their three score and ten, or four score, are done.
