especially if you are going fast.” You could burn up to 500 calories in a half hour, but West says “that’s maximal effort.” Never miss a story — sign up for PEOPLE's free daily ...
How many calories you burn running a mile depends on several factors, such as your speed and weight. For example, a 120-pound person will burn about 114 calories running a 10-minute mile.
In fact, pulling yourself through the water can strengthen your entire body—and the calories burned swimming quickly add up. 'Although swimming sometimes seems relatively hard and scary ...