Get up in the morning and drink a large glass of boiled water. Remember to drink quickly. The function is to clean the stomach, then go to the toilet and wash. It is best not to eat greasy food for breakfast. Lunch is as usual. You'd better not eat dinner. If you really feel hungry, eat an apple. Stick to jogging or brisk walking for an hour at night, or jump rope indoors, 5 minutes for each group and 5 groups.