Train your heat illness reflex before the emergency hits
A heat wave warning is issued. A family member acts confused or dizzy in the heat. Will you freeze — or recognize it in seconds? Drill 40+ messy real-world cases under time pressure.
How it works
1. Read the scenario card — a person, their setting, and symptoms with a confounder.
2. Classify before the 10-second timer runs out: Heat Cramps, Heat Exhaustion, or Heat Stroke.
3. See the discriminating symptom and CDC/WHO/Red Cross source after each card.
Every case is based on CDC, WHO, and Red Cross criteria. You’ll see the source after each card.
Current Drill
Every case is based on CDC, WHO, and Red Cross criteria. You’ll see the source after each card.
All Medical Sources
Every classification in Heat Reflex is grounded in published guidelines from these authorities. No invented criteria.
Centers for Disease Control and Prevention
Heat Stroke — altered mental state is the hallmark discriminator
cdc.gov/disasters/extremeheatWorld Health Organization
Heatwaves — heat illness classification criteria
who.int/health-topics/heatwavesInternational Federation of Red Cross
Heat Illness Recognition — cramps vs exhaustion vs stroke
redcross.orgHeat Reflex is an educational drill, not a substitute for professional medical advice. In a heat emergency, call your local emergency number immediately.