Whether you're running or going for a power walk, take care when the temperature rises. If you exercise outdoors in hot weather, use the following commonsense precautions to prevent heat-related illnesses.
How fast your body burns calories depends on several things. Some fortunate souls inherit a speedy metabolism. Men tend to burn more calories than women, even while resting. And for most people, metabolism slows steadily after age 40. Although you can't control your age, gender, or genetics, there are other ways to improve your metabolism.