If you suspect someone is suffering from heat stroke, call 911 and request an ambulance immediately. Until medical help arrives, move the victim from the heat and into a cool place. Soak his or her clothes with water and use a fan or ice packs. Use fans and air conditioners to cool your home. Slow down and take it easy.
Physical activity produces extra heat.
Cotton is a light, airy fabric. Wear a hat or use an umbrella to protect your head and neck when you are outdoors. Drink plenty of water. Don't wait until you are thirsty. By then, you may already be dehydrated.