Heat stroke, which may follow heat exhaustion, is however much more serious. Under this condition, the body temperature may increase to more than 40.5oC. Because the body can no longer dissipate sufficient heat, the patient will have dry and red skin, and perspiration will almost cease. Other symptoms include a rapid pulse, convulsions and unconsciousness.
「中暑」則是比熱衰竭更為嚴重的病程（並可能由熱衰竭轉成），此時患者體溫已升高超過 40.5℃，由於身體已無法正常散熱，因此排汗稀少而皮膚乾燥發紅，其他症狀有：脈搏跳動快、全身抽筋甚至意識障礙等。