Newsweek has a general interest article up online on the topic of mainstream longevity science: projects aimed at the hard target of metabolic manipulation to slow aging. "Since the days of Ponce de Leon, if not before, people have been seeking the elusive Fountain of Youth. Until recently, such pursuits were the realm of quacks and charlatans. And there are still plenty of snake-oil salesmen out there on the Internet and in so-called anti-aging clinics, hawking everything from longevity-bestowing Ecuadoran waters (which are probably harmless) to growth hormones (which could be downright dangerous for adults). But serious scientists are now bringing respectability to the field, unraveling the secrets of aging on a cellular level and looking for ways to slow it down. And while the science is still young (so to speak), legitimate longevity-boosting treatments could be available in 10 to 15 years - although the gains would be [modest]. ... Some critics of the scientific quest for longevity say it's God's will that we should die when our time comes. But in the past century, a clean water supply, antibiotics, vaccines and improved medical care have boosted life expectancy at birth by roughly 50 percent in the United States - from 48 for men and 51 for women in 1900 to 75 for men and 80 for women today. No one seems to object to that."