Walking backward is conducive to venous blood flowing back from the distal end to the proximal heart, which can play the role of the "second heart" of the foot more effectively and is conducive to circulation. In addition, when walking backwards, we should judge the running direction and master the balance, so as to exercise the balance function of the cerebellum, enhance and improve the flexibility and coordination of the body, and prevent brain atrophy caused by disuse. When people walk forward, their bodies bend forward slightly, and when they work and study, they also bow their heads. On the contrary, when walking backwards, the torso bends slightly backwards. Regular practice of walking backwards can prevent and correct hunchback with chest. It is advisable to take a hundred steps back at a time.

Squat exercise is suitable for the elderly to hold the bedside or door frame for exercise at home, which can play a role in disease prevention and fitness.

First, it can improve blood circulation and nerve function of lower limbs, effectively promote venous blood return and reduce venous pressure, and promote blood circulation of lower limbs.

Second, it can improve cardiovascular and cerebrovascular functions, and has a positive effect on stabilizing blood pressure, regulating endocrine disorders and promoting human metabolism.

Third, it can enhance the range of motion of waist, hip, knee and ankle, and delay the degeneration of joints.

Fourthly, due to the collision of thigh and abdominal muscles and the contraction and relaxation of hip muscles during squatting, it has a good preventive and therapeutic effect on hemorrhoids, prostatitis, kidney calculi's disease, constipation, lumbar muscle strain and other diseases.

Facial movements can brighten your ears. Some people think that if a certain part of the human body insists on scientific exercise for a long time, it can accelerate blood circulation and promote metabolism, thus delaying the "aging" of organs in this part.

"Face Exercise" Fitness Method: Ideally, after getting up every morning, choose a place with fresh air, open and close your mouth as much as possible, and drive all muscles on your face and even scalp to do rhythmic exercise (about 1 second at a time), at least 100 times, until you feel a slight fever on your face and scalp. After every facial exercise, I will be sleepy, clear-headed and quick-thinking all day.