Summer is too hot, so it may lead to the phenomenon of heatstroke, when the patient has heatstroke will lead to the patient’s body weakness, accompanied by dizziness, headache symptoms. This situation must go to a cool place to pay attention to rest, and then you can properly replenish energy, such as eating some food or drinking some drinks, etc., which can effectively relieve the phenomenon of heat stroke and gradually restore strength. There may also be hypokalemia caused by dehydration due to excessive body sweating in summer and less water supplementation, which can also cause general weakness. Therefore, it is recommended that patients must replenish water in a timely manner and eat more fruits containing potassium ions, such as bananas and oranges, which can effectively reduce the symptoms of malaise.