Its not intelligence its economy. A smart person in an economically deprived situation (born into abject poverty) can't make healthy decisions - but that certainly does not preclude that person from being intelligent or from living a long life. Theyve certainly proven basic nutrition helps kids pay attention in class - but intelligent people living longer because of intelligent decisions is nonsense (even in the west). Einstein was non verbal until age four - and he couldnt tie his shoes - I doubt his diet and exercise were anymore intelligent ;) We were born with only so many heartbeats - no matter how smart you are you can't change that.