Diet and Weight LossHere's a pretty eye-opening fact: To lose a pound, you need to burn 3,500 calories. How can you burn 3,500 calories? Well, you can run... for five hours. You can also do aerobics for seven hours, play the guitar for 14 hours or dance for eight hours. But who has the time -- or energy -- to do all that?
My point is this: exercise is great but it takes a lot of work to lose weight.