Excessive Heat: 10 Signs Your Body Is Overheating

Learn the key warning signs your body gives you during extreme heat. Stay alert, stay safe!

Dizziness & Lightheadedness

Feeling dizzy is one of the first signs of heat exhaustion. Your body may be struggling to regulate its temperature.

Rapid Heartbeat

A racing heart in hot weather means your body is working overtime to cool down. Time to rest and hydrate.

Nausea or Vomiting

Heat can mess with your digestive system. If you feel sick, get to a cool place and drink water.

Muscle Cramps

Dehydration and low electrolytes can cause painful cramps—especially in legs and arms.

Excessive Sweating (Then Suddenly None)

Heavy sweating is normal—but if it suddenly stops, that’s a red flag for heatstroke.

Weakness or Fatigue

If you're feeling unusually tired, your body might be overheating. Take it slow and cool down.

Headache

Heat-related headaches are common and dangerous. Rehydrate and rest in a cool, shaded spot.

Confusion or Trouble Concentrating

Mental fog or confusion signals that heat may be affecting your brain. Immediate action is needed.

Skin Feels Hot & Dry

Skin that feels hot but dry is a warning sign—especially if sweating has stopped. It could be heatstroke.

Fainting or Loss of Consciousness

This is a medical emergency. Call for help immediately and cool the person down fast.