Hello Method 1: Sit-ups A: Lie flat, bend your legs and put your hands behind your head, just like the preparation posture of sit-ups. B: Take the lower abdomen as the center, lift the upper body, and at the same time draw your feet forward until your elbows touch your feet. This posture looks like a ball, so your mind should focus on your lower abdomen. C: Return to the original posture and repeat the above steps for 30 times. Don't. If you don't do it for ten, you will have a little abdominal pain. You sweat after doing thirty. Method 2: Ride a bike. Answer: Lie flat with your legs bent at 45 degrees. B: Your legs extend and retract alternately. This posture is like the movement of your feet when riding a bicycle. C: Take a step forward and keep your feet off the ground for about 30-60 degrees. Hold for 5 minutes. This method can exercise your thighs, waist and abdomen. In other words, these three places can lose more fat. Method 3: A: Sit up straight, put your feet together and straighten forward. Put your hands behind your head. Lean back, legs together, straight. The body is V-shaped. C: Keep the action 10 second, and repeat the above action 10 times. Choose one of the above methods at will, and most people think of the second one.