Weakness of the limbs and dizziness in the elderly are often caused by inadequate cerebral blood supply due to underlying diseases and chronic diseases such as hypertension, diabetes, hyperlipidemia, carotid plaque formation, and coronary heart disease that are not well controlled in the elderly. With age, atherosclerosis of the blood vessels in the brain gradually progresses, the elasticity of the blood vessels decreases, and cerebral insufficiency of blood supply inevitably occurs. Especially for elderly people with hypertension, diabetes, coronary heart disease, hyperlipidemia and carotid plaque formation, the degree of vascular atherosclerosis is usually several or ten times higher than that of normal elderly people. After arteriosclerosis, the elasticity of blood vessels decreases and the blood supply to the brain is insufficient, including the blood supply to the important organs and limbs of the whole body, and the elderly usually feel dizzy and weak in the limbs, especially after walking or exercising for a period of time.