How to keep your heart healthy.

Bonnie Brown, 50, of Baltimore, says she also didn't change her life until she had a heart attack in 1997. "I used to smoke, ate cold-cut subs for breakfast, and had lots of fried foods, all the time, any time," Brown says. But her heart attack--which she initially mistook for a bad case of indigestion--led her to give up cigarettes, improve her diet, and sign up for weekly water aerobics and line dancing classes.