Which is caused by the body in the environment of high temperature and excessive heat. Which affect the circulatory system and the brain. Key warning signs of the disease, heat stroke. Is no sweat Despite the hot weather, hot flushes and more. Feeling very thirsty, dizziness, headache, nausea, vomiting, rapid breathing, seizures, dizziness, muscle contraction, mydriasis may feel a diminished consciousness, if not resolved correctly and timely. May be can die.