The Youth PillBy: David Stipp Living longer is closer than we think. Even before the first person set off to find the Fountain of Youth, we were searching for a way to live longer. But promises of life extension have long reeked of snake oil, and despite our wishful thinkingnot to mention the number of vitamins we popfew of us believe well live to see one hundred, much less set a longevity record. But now scientists are closing in on true breakthroughs in anti