Put on music and dance, scrub the bathtub spotless, whatever engrosses you—for at least 10 minutes. "That's about the minimum time needed to break a cycle of thoughts," says Nolen-Hoeksema, who's been studying rumination for more than 20 years. Or choose something to focus on. "A friend told me that she once started counting the number of times the speaker at her conference said 'like,'" Nolen-Hoeksema recalls. "By the time he finished, she'd stopped ruminating."
Declutter your life! Our March issue features a complete guide to streamlining your life, from Peter Walsh's 30-Day Organization Challenge to innovative ways to clear your mind. Plus, go behind the scenes of Oprah's yard sale and find out how you can improve the world with a simple "hello."