What are the common methods of exercise to lose weight?

　　1. Knee lift exercise

　　Find a sturdy chair and sit on the edge with your knees bent and feet flat on the floor. Tighten your abdomen, lean back slightly, and lift your feet a few centimeters off the ground. Maintaining a steady movement, draw your knees toward your chest while bending your upper body forward. Then return your feet to their original position and repeat.

　　2. Cycling

　　Just lie on the floor and pretend to ride an imaginary bicycle. The correct action is to press the lower part of your back against the floor and place your hands behind your head. Lift your knees to a 45-degree angle, and use your feet to pedal. Your left ankle should touch your right knee, and then your right ankle should touch your left knee.

　　3. Arm sit-ups

　　Lie down, bend your knees, and hook your feet together on the head of the bed. Wrap a towel around your neck from the back and pull one end with each hand. Contract your abdomen, lift your shoulders, slowly roll up your back, then slowly lean back, and continue to stand up when you are almost touching the floor, and repeat. If you find it too difficult, just lift your upper body off the floor.

　　4. Ball lifting exercise

　　Lie on your back, holding a tennis ball in your hand, raise your hands toward the ceiling, straighten your legs together, and hook your feet. Tighten your abdominal and buttock muscles and lift your shoulders and head a few centimeters off the floor. Make sure the ball always shoots upward toward the roof, not forward.

　　Your goal is to sweat. The purpose of all aerobic exercise is to make you sweat. If you're not sweating, you're not trying hard enough. When exercising, the more precise your posture is, the faster you will sweat. This might make you as red as tomato , but it’s definitely good for your body, so just try to do it.