Eternity Soup

"As Greg Critser explains in his thoroughly researched and highly entertaining new book, "Eternity Soup: Inside the Quest to End Aging," much of this anti-aging movement is based, at best, on questionable science and, at worst, self-serving greed. Critser spends time with the Caloric Restriction Society, a group claiming that mild, sustained starvation leads to an increased life span (and whose chief science officer says that you should really forgo dinner tonight and go on a nice long walk). Critser tries testosterone, a hormone that some argue can stave off the effects of aging in men, and visits a British academic who says that if we could learn to repair the damage to our battered organs, humans could live hundreds of years."

Read an interview with Critser in Salon.