Below are more tips to prevent heat related illnesses.

• Stay indoors in an air-conditioned place, if possible. If your home does not have air conditioning, go to a public place such as a shopping mall or public library. A few hours spent in air conditioning can help your body stay cooler when you go back into the heat. Call your local health department to see if there are any heat-relief shelters in your area.
• Limit your outdoor activity to morning and evening hours.
• Don’t drink liquids that contain alcohol or large amounts of sugar–these actually cause you to lose more body fluid.
• Electric fans may provide comfort, but when the temperature is in the high 90s, fans will not prevent heat-related illness. Taking a cool shower or bath, or moving to an air-conditioned place is a much better way to cool off.
• Although any one at any time can suffer from heat-related illness, some people are at greater risk than others:
  • Infants and young children
  • People aged 65 or older
  • People who have a mental illness
  • Those who are physically ill, especially with heart disease or high blood pressure
• Cut down on exercise. If you must exercise, drink two to four glasses of cool, non-alcoholic fluids each hour. A sports beverage can replace the salt and minerals you lose in sweat. Warning: If you are on a low-salt diet, talk with your doctor before drinking a sports beverage.
• Protect yourself from the sun by wearing a wide-brimmed hat (also keeps you cooler) and sunglasses. 
• Don't forget the sunscreen. Use an SPF 15 or higher, broad spectrum (UVA/UVB) lotion.