When does a person experience heat stroke?

A person can experience heat stroke when their body temperature rises rapidly and they are unable to cool down. This can be due to engaging in strenuous activities in the heat or even by  being in a hot place for too long.

Is heat stroke life-threatening?

Yes, heat stroke can be life-threatening as it can result in damage to your brain as well as other important body organs

Signs and symptoms

Signs and symptoms of heat stroke include having a fever of 40 degrees celcius (or more), rapid heart-beat, heavy sweating, a change in mental status or behaviour (confusion, agitation, slurred speech), headaches, fainting, hot, dry or flushed skin, nausea and vomiting, and rapid breathing.

Seek medical attention

If someone you know is suffering from heat stroke, call for help or seek medical attention immediately.

It is vital to keep the patient cool, so move him out of the heat and cool him down with cool water. You can also fan him and offer him a little cool water to drink (if he is conscious and able to swallow). Note that alcoholic and caffeinated beverages should not be given.

Source: Mayoclinic