Elusive

A new study brings scientists closer to an elusive goal: figuring out how to outsmart humans’ biological clocks to slow the aging process and keep people healthier, longer.

For decades, researchers have studied calorie restriction as a potential method of extending lifespan. Numerous promising trials, some dating back almost a century, have been conducted in animals—but the new study, published Feb. 9 in Nature Aging, is significant because it demonstrates that calorie restriction may also slow aging in humans.
—Time