The waist and stomach are often closed and separable, and the waist will become round when the stomach grows out. How can I slim my waist, thin belly? Practice the thin waist and thin abdomen recommended by Bian Xiao below, and easily twist your waist and abdomen in bed, so that you can repel the waist and abdomen fat and slim your waist. How to thin waist and thin abdomen-1, lying on the bed, knees bent, hands on both sides of the body, left leg tilted to the right, so that the left knee touched the ground, and the right palm was buckled behind the left calf. The pelvis is twisted to the right, leaving the left hip off the ground. At this time, the muscles of the side waist are stretched. 2. Twist the waist to the left and return to the supine position. The back and buttocks are completely attached to the ground. Spread your legs slightly apart and bend your knees so that your thighs and calves are at right angles. Swing your arms straight up, stretch your arms up, put your hands together, and press your wrists down. Then go back to the starting position and repeat this action 10 times. How to thin waist and abdomen thin waist and abdomen exercise 2 1, lie on your back, bend your knees, spread your feet slightly, and hold the area near your armpit with your hands crossed. 2. Turn the upper body to the right, so that the left shoulder, left upper body and left hip are off the ground, and the head turns left. Then lie flat again and turn right. Repeat this action 10 times.