One Tree Hill star Sophia Bush is only 26, but for her, good health is a lifelong mission. “I’ve started to treat my health like a science project,” says Bush, who can rattle off lists of bone-density-building exercises and antioxidant-rich foods with aplomb. Bright and refreshingly levelheaded, the Pasadena, Calif., native is the only child of father Charles, a photographer, and mom Maureen, who runs a photo studio. And Bush has done her parents proud: You won’t find her spilling half-naked out of a limo. (In fact, the only time she made tabloid news was when she and her Hill co-star Chad Michael Murray divorced in 2005 after five months of marriage.)
Bush spends most of the year commuting from her Los Angeles home to the Wilmington, N.C., set of One Tree Hill, which has just started its sixth season. (She’s also in two upcoming films: The Narrows and Table For Three.) In her limited spare time, Bush is a passionate advocate for health-care reform, a role she took on after witnessing loved ones who have fallen ill. Here, she holds forth on that cause and much more.