Actress Loretta Devine, 58, a regular on Grey's Anatomy, played teacher Marla Hendricks on Boston Public. Now she can teach us a thing or two about staying young. "To stay beautiful you must work inside out. Meditation helps. A few minutes a day, you sit quietly until you hear your own heart beating. Relax and love yourself a bit," Devine suggests. "Doing things I enjoy, like reading, knitting, beading, and embellishing evening gowns — a hobby of mine — is a true joy. I also dabble in acrylics and water colors and singing for charities; those keep me happy, healthy, and feeling good about myself."