These are questions that scientists — and drug companies that see an opportunity to make some serious money — have been trying to figure out for a long time. In fact, both the time and the money poured into anti-aging and longevity research is growing year after year. So, what's the secret? Well, according to a 106-year-old Southern Italian man named Salvatore Caruso, it's "no smoking, no drinking, no women." And, when National Geographic
writers spoke to Caruso and others for this fascinating article, going very easy on the red meat probably helps, too.
Photo: Fritz Hoffmann/Courtesy of National Geographic.