The first method is to lie flat on the mat at home against the wall, and then straighten your legs at an oblique angle of 60 degrees. Put your heel on the wall and let the blood flow back for a few minutes. Your legs will feel warm and comfortable. When your feet start to turn white, put them down for a minute and then repeat them once or twice a day, especially when you come home from work. The other is sitting in a chair. Straighten your legs or one of them is parallel to the ground. The pedal was originally at a 90-degree angle to the ground. Press it slowly and forcefully for 5 seconds, then retract it, and repeat 10 times. Take a rest three or four times a day, and then do some standing exercises. Straighten your legs and shoulders, and then slowly straighten out and do a stance. Another way is to sit on a stool and buy a bouncy ball as big as a volleyball for the children to play with, then squeeze the ball hard for 5 seconds with the inside of the thigh, then relax and repeat the exercise.