With an angry summer sun beating down and temperatures at or near the century mark this week, area residents are advised to take precautions to guard against heat-related illness.

The National Weather Service issued a Heat Advisory for Tuesday and Wednesday as daytime high temperatures were expected to reach 100 degrees and remain in the mid- to upper 90s for the remainder of the week. Combined with high humidity, it can add heat stress to both man and beast.

"The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are possible," the NWS advisory issued Tuesday stated. "Heat index values will rise to around 105 degrees this afternoon (Tuesday) and to 110 degrees Wednesday afternoon."

Those who work out of doors are urged to take precautions to avoid heat-related illness.

"Take extra precautions if you work or spend time outside," according to the NWS. "When possible, reschedule strenuous activities to early morning or evening."

Oklahoma State Department of Health recommends the following:

• Drink more fluids, regardless of your activity level. Don’t wait until you’re thirsty to drink.

• Don’t drink liquids that contain alcohol or large amounts of sugar; these actually cause you to lose more body fluid. Also, avoid very cold drinks, because they can cause stomach cramps.

• Stay indoors and, if at all possible, stay in an air-conditioned place. If your home does not have air conditioning, go to the shopping mall or public library. Even a few hours spent in air conditioning can help your body stay cooler when you go back into the heat.

• Electric fans may provide comfort, but when the temperature is in the high 90s, fans will not prevent heat-related illness. Taks a cool shower or bath, or move to an air-conditioned building.

• Wear lightweight, light-colored, loose-fitting clothing.

• NEVER leave anyone in a closed, parked vehicle.

• Although any one at any time can suffer from heat-related illness, some people are at greater risk than others. Check regularly on infants and young children, people aged 65 or older.

For more information, log onto http://www.ok.gov/health/Heat_Precautions.html