Scientists say it shows brisk walking 30 minutes a day, four-to-six days a week, is enough to cut the risk from premature death from all causes.
The study will be published in next month's issue of Circulation.
Moderate exercise can prolong men's life
(KABC) Government researchers studied information on more than 15,000 men who had a treadmill test. Men who were categorized as "moderately fit" had about a 20 percent lower risk for death than "low-fit" men.
