Wealth , access to healthcare , and education are all closely linked to longer lifespans . `` The first eight presidents lived an average of 79.8 years during a time when life expectancy for men was under 40 , '' says Olshansky , whose findings were published today in the Journal of the American Medical Association . Comment: Two-thirds of presidents lived ( or are living ) longer than their projected lifespans .
Wealth , access to healthcare , and education are all closely linked to longer lifespans . Comment: Two-thirds of presidents lived ( or are living ) longer than their projected lifespans .