What to do
- 1Move the person out of the heat into shade or air conditioning.
- 2Lay them down and raise the legs and feet slightly.
- 3Remove tight or heavy clothing.
- 4Cool them actively — spray or sponge with cool water and fan them.
- 5Have them sip cool fluids — water, a sports drink with electrolytes, or another nonalcoholic, non-caffeinated drink (only if alert enough to drink safely).
- 6Monitor carefully and keep cooling.
- 7Escalate — call 911 if they faint, become confused or agitated, seize, can't drink, or show signs of heatstroke.
When to use it
- Hot-weather hikes, summer camp, hard work or games in the sun — the common setting.
- Catching a struggling scout early (dizzy, sweaty, nauseated, cramping) before it becomes heatstroke.
- Telling "rest, shade, and fluids" from "needs 911 now."
Common mistakes & safety
- Heat exhaustion can turn into heatstroke, which is life-threatening. Keep watching — any change to confusion, fainting, or not making sense means escalate to 911.
- Cooling matters as much as fluids. Get them out of the heat and actively cool (wet skin + fanning); don't rely on drinking alone.
- Don't give fluids to someone confused or who can't drink safely — choking risk, and a sign it may be heatstroke.
- Skip caffeine and alcohol — both work against rehydration.
- Rest and recover, don't push on. Someone with heat exhaustion shouldn't return to activity in the heat that day.
- Prevent it: drink before you're thirsty, take shade breaks, pace activity, wear light loose clothing, and acclimatize gradually.
Going deeper
- The heat-illness ladder. Heat cramps → heat exhaustion → heatstroke. Cramps and exhaustion are warnings; heatstroke is the emergency. Catching it early is the whole point.
- Read the skin and the head. Cool skin that's still sweating usually points to heat exhaustion; hot skin with confusion points to heatstroke — but if in doubt, cool aggressively and call for help.
- Electrolytes, not just water. You lose salt as well as water, which is why sports drinks are offered in heavy sweating.
Official source
Heat exhaustion: first aid โ Mayo Clinic →This is general first-aid information, not a substitute for hands-on training. Any change toward confusion or fainting means call 911.