If you have fat, start running+sit-ups, which is the best exercise method now. Long-distance running can consume a lot of body fat (mainly aerobic exercise, which is effective) and then sit-ups. Side-pulling dumbbells: Hold dumbbells during training.

Put your other hand behind your head. The body must be put aside.

The arm holding the dumbbell naturally droops, and then the body is restored by the strength of the waist.

Arms always droop naturally.

Generally, 10 to 15 times are a group,

Do two or three groups at a time.