What exercise should i do to lose weight?

The best exercise?: What's the best exercise? Simple: the one you will do! people who keep weight off effectively exercise, but they aren't all "jocks." most of the people on the national weight control registry walk for their exercise. Anything that uses your big muscle groups: walking, cycling, rowing - yes, rowing! - burns calories, keeps your heart fit, and helps maintain a positive mood. Good luck. Lgromko md.