A heat wave is an extended period of extreme heat, and is often accompanied by high humidity. These conditions can be dangerous and even life-threatening for humans who don't take the proper precautions.

Heat kills by pushing the human body beyond its limits. In extreme heat and high humidity, the body must work extra hard to maintain a normal temperature. Most heat related illnesses occur because the victim has been overexposed to heat or has over-exercised for his or her age and physical condition. Older adults, young children and those who are sick or overweight are more likely to succumb to extreme heat.

Heat stroke can happen at any time and cause shock, brain damage, organ failure or death. Symptoms include irrational behavior, confusion, rapid breathing and a faint pulse. Prevent heat stroke by:

• Staying in air conditioning during hot days
• Wear a hat when in the sun
• Wear lightweight clothing in hot weather
• Drink more water than usual

Visit these websites for more information about extreme temperatures and steps to take to keep your family safe:

Ready.gov (http://www.ready.gov/heat)

American Red Cross (http://www.redcross.org/prepare/disaster/heat-wave)

National Weather Service (http://www.nws.noaa.gov/om/heat/)