 The symptoms for body temperature for heat stress is loss of fluid, fatigue, muscle tightness, and the stress on the body cooling system, which is your temperature. Also, the most common heat stress are heat exhaustion, heat stroke, heat rash, and heat cramp. The most serious disease when it comes to heat stress is heat strokes. Heat stroke is when the body temperature is actually above 103. When it's above 103, that is also a sign of death and also you need immediate tension. Just remember when you have a heat stroke that someone needs to take you to the hospital and do not drive yourself. Remember, in order to beat heat stress, you need to always remain in a cool condition, drink plenty of water, and take many breaks in order to relieve the stress off your body.