Generalized weakness and limpness in hot weather may be related to physiological factors, or it may be caused by heat stroke, electrolyte disorders, wind-heat colds and other reasons. 1. Physiological factors: due to the hot weather, long time in the overheated environment, resulting in physical discomfort, easy to affect the quality of sleep, resulting in insufficient sleep, it may cause general weakness, limp. 2. Heat stroke: due to the hot weather, if you stay in a high temperature environment for a long time, it is easy to lead to dysfunction of the thermoregulatory center, resulting in fever, you may show weakness and weakness of the whole body, can also be accompanied by dizziness, headache and other symptoms. 3. Electrolyte disorders: If you stay for a long time in the hot weather environment, because the body sweats too much, if you do not replenish the water in a timely manner, it is likely to lead to electrolyte disorders, which may result in weakness and flaccidity. 4. wind-heat cold: the weather is hot, it is likely to cause wind-heat cold, it may show the weakness of the body, accompanied by sore throat, fever, runny nose and other symptoms. Hot weather weakness and limp, but also for other reasons, if the symptoms continue to be unable to alleviate, should seek medical attention as soon as possible, to clarify the cause, to give targeted treatment.