Vitamin C has long been sold as a shortcut to a brighter complexion, but the latest research suggests it is doing something ...

This article is a part of CNN Underscored’s Guide to Age-Defying Beauty, a weeklong focus on the essential products, tips and tricks to enhance your glow at any age. We’ll be featuring editor-tested ...

In his new Nat Geo series, 'Limitless,' the actor dangles from a rope high above a canyon and surfs frigid waters—all to test extreme strategies for living longer. In his new National Geographic ...