One of the reasons so many people flock to Las Vegas is for the great weather, including the summer heat and sun. But prolonged exposure to the desert heat and can lead to very unhealthy conditions including dehydration, heat exhaustion and even heat stroke. Knowing how to prevent these conditions and knowing the warning signs could help save a life.

Prevention
There are several things you can do to protect yourself from a heat-related illness.
• Stay hydrated. Make sure to drink plenty of fluids (avoid those with alcohol or carbonation) during periods of excessive heat, exercise or illness. 
• Limit exposure during periods of extreme heat.
• Keep those within certain age groups, such as children and the elderly, out of extreme temperatures.
• Limit exercise during times of extreme heat. Exercise can lead to excess perspiration, which will result in fluid loss.
• Allow yourself time to acclimate to a new, hotter environment.
• If you must work in high temperatures, take some precautions. Take frequent breaks. Make sure there is sufficient ventilation and shield from the sun. Use protective clothing such as hats and long-sleeve shirts.

Dehydration
Dehydration generally occurs when the body loses more fluids than it takes in. A number of things can cause this including excessive perspiration, illness, excessive exercise or a failure to take in enough liquids during hot weather. Symptoms are wide-ranging, but can include dizziness, excessive thirst, weakness, irritability, dry mouth and sunken eyes. Those experiencing symptoms should drink more fluids. If symptoms continue or get worse, medical attention should be sought.

Heat Exhaustion
Heat exhaustion is a heat illness that occurs after prolonged exposure to high temperatures and loss of fluids from the body. Symptoms can include dizziness, muscle cramps, a rapid pulse, headache, vomiting, excessive perspiration, weakness, clammy skin and a red, flushed face. Those experiencing symptoms should drink fluids and rest in a cool shaded area. A cool bath or shower may also help. A person exhibiting symptoms of heat exhaustion should be closely monitored as the condition can quickly progress to heat stroke.

Heat Stroke
Heat stroke occurs when the body is unable to regulate its core temperature. The main symptom of heat stroke is high body temperature. This can be accompanied by nausea, dry skin, confusion, drowsiness, rapid and shallow breathing, fainting, a rapid heartbeat and an elevated or lowered blood pressure. If a person is exhibiting the symptoms of heat stroke, call 9-1-1 immediately.

For further tips on protecting yourself from heat-related illnesses, visit the Centers for Disease Control Web site .