Slow down. Your body can't do its best in high temperatures and humidities; it might do its worst.
Heed your body's early warnings that heat syndrome is on the way. Reduce your level of activity immediately and get to a cooler environment.
Dress for summer. Lightweight, light colors reflect heat and sunlight and helps your thermoregulatory system maintain normal body temperature.
Put less fuel on your inner fires. Foods (like proteins) that increase metabolic heat production also increase water loss.
Don't dry out. Heat wave weather can wring you out before you know it. Drink plenty of water while the hot spell lasts.
Stay salty. Unless you're on a salt-restricted diet, take an occasional salt water tablet or some salt solution when you've worked up a sweat.
Avoid thermal shock. Acclimatize yourself gradually to warm weather. Treat yourself extra gently for those first critical two or three hot days.
Vary your thermal environment. Physical stress increases with exposure time in heat wave weather. Try to get out of the heat for at least a few hours each day. If you can't do this at home, drop in on a cool store, restaurant, or theater--- anything to keep your exposure time down.
Don't get too much sun. Sunburn makes the job of heat dissipation much more difficult.
