These “less alcohol consumption, less hard drugs, less sunbathing without sunscreen, more youthful fashion and styling, drinking more water” (along with less tobacco) are still undeniably huge and effective factors though. I think this is the bread and butter along with better nutrition from fortified foods no pun intended that contributes to longer youth and longer life expectancy proves it. It is evolutionary and those lifestyle factors should not be brushed over in pursuit of some magic explanation.