Even small amounts of daily exercise help to reduce the risk of heart disease. That's the conclusion of a new review of research on the topic. Some benefit was seen with as little as 10 to 15 minutes of exercise a day. The review combined the results of 9 previous studies. All of them included information on exercise habits. Researchers looked at people who did moderate-intensity exercise (such as walking) for at least 150 minutes a week. That is the current recommended minimum. People in this group had a 14% lower rate of heart disease than those who did no exercise. Benefits of exercise were strongest among women. The study appeared in the journal Circulation. /USA Today
