Different causes of weakness should be alleviated in different ways. Common causes of weakness include physiological factors such as lack of sleep, electrolyte disorders, cerebral ischemia, etc. It is recommended to adopt different ways to alleviate the weakness according to different causes. 1. Physiological factors: lack of sleep will cause weakness due to the body’s metabolism decreases, you need to supplement vitamin-rich fruits, vegetables, etc., and also need to supplement high-quality proteins, such as fish, shrimp, crab, chicken, duck, etc., in addition to the need to ensure that enough sleep. 2. Pathologic factors: (1) Electrolyte disorders: electrolyte disorders can cause weakness by disturbing the normal metabolism of the body, and it is necessary to replenish electrolytes in a timely manner, and it is common that electrolytes can be corrected, such as sodium chloride, potassium chloride and calcium chloride. (2) Cerebral ischemia: cerebral ischemia and hypoxia will lead to related motor nerve disorders showing weakness, and the causes of cerebral ischemia and hypoxia need to be corrected, and common medications that can alleviate cerebral ischemia include flunarizine hydrochloride, etc., which can alleviate cerebral ischemia and hypoxia by expanding blood vessels. Physical weakness caused by sleep deprivation, electrolyte disorders, and cerebral ischemia needs to be relieved by different methods, and it is recommended to be relieved under the guidance of a doctor.