Exercise for a Healthy Heart
Your heart is a muscle, and it gets stronger and healthier if you lead an active life. It's never too late to start exercising, and you don't have to be an athlete. Even taking a brisk walk for 30 minutes a day can make a big difference.
Once you get going, you'll find it pays off. People who don't exercise are almost twice as likely to get heart disease as people who are active.
http://www.webmd.com/fitness-exercise/guide/exercise-healthy-heart#1
