Wang Kai, director of geriatrics department of 305 Hospital of Chinese PLA, reminds the elderly that it is best to choose shoes with soft heels, and the heel height should be 2 cm. shoes with a little heel are more in line with the characteristics of the feet of the elderly. With the growth of age, the foot muscles and ligaments will degenerate, the muscle strength will be weakened, and the elasticity of the foot arch will gradually lose. If the heel of the shoes is less than 2 cm, the whole body weight will act on the heel too much at the moment of foot landing, and walk too much. The impact force uploaded can make the elderly have pain and discomfort in ankle, knee, hip and waist, as well as dizziness and head Pain, etc. In addition, the stability of shoes with slightly heel is better than that of flat shoes, and the elderly are easy to control the stability of the body in the activity, so as to avoid falling down or causing various injuries of foot muscles and ligaments.