Heat waves are a leading weather-related cause of death. Normally, the body cools itself by sweating, but if temperatures and humidity are extremely high, sweating may not be enough to cool the body. When this happens, blood chemistry can change and internal organs--including the brain and kidneys--can be damaged.

Here are some pointers from a Public Health web site...

1. Use the Buddy System - Have someone keep a check on you and you them when working or playing outside.
2. Limit Outdoor Activities - Plan your outside activities for the cooler times of the day. Also, rest frequently in the shade during periods of physical activity.
3. Drink Plenty of Fluids - Make an extra effort to drink more fluids than you normally would...even more than your thirst would indicate.
4. Protect Your body - Wear light, loose-fitting clothing, avoid direct sunlight, wear a had, and use sunscreen. Your sunscreen should be SPF 15 or greater to be effective.
5. Never Leave People or Pets in a Parked Car - Temperatures inside a parked car can quickly get to over 100 F and cause serious injury or death.
6. Take Care of your Pets - You should provide plenty of cool water and keep it and the pet in the shade.