Dress for the heat: Wear lightweight, light-colored clothing, a hat or an umbrella.
Drink water: Carry water or juice with you and drink continuously even if you do not feel thirsty. Avoid alcohol and caffeine, which dehydrate the body.
Eat small meals and eat more often: Avoid high-protein foods, which increase metabolic heat. Slow down. Avoid strenuous activity or limit it to the coolest part of the day, usually 4-7 a.m.
Stay indoors when possible: If air-conditioning is not available, stay on the lowest floor out of the sunshine. Remember that electric fans do not cool, they just circulate the air.
Be a good neighbor: During heat waves, check in on elderly residents in your neighborhood and those who do not have air conditioning.
The National Weather Service reports that excessive heat is the number one weather-related killer, causing more fatalities per year than floods, lightning, tornadoes and hurricanes combined.