Don't freeze your legs for beauty. If you get rheumatoid arthritis when you are old, you will regret it. If you want to lose weight and gain weight, don't eat after 8 pm, go to bed before 10: 30 pm, get up early and have a big breakfast. If you are greedy, you can eat more breakfast. It will be effective to run for 25 minutes at the fastest speed of aerobic breathing every day or jump rope swimming 1 month.