Hula hoop thin waist has the best effect. Eat 1 hour every day, turn for half an hour -2 hours, and you will see the effect in half a month. But once it doesn't turn, it will rebound a lot ... we must stick to it.
Sit-ups flatten the lower abdomen, and they must be held for more than 300 times a day to be effective, but sit-ups are harmful to the development of the chest and the muscle stretching of the back. ...
If you don't want to get up and run in the morning, you can start jogging 30 minutes after dinner, or walk for more than 30 minutes. Don't eat after exercise.
In my opinion, swimming is the fastest way to lose weight in summer ...