Staying Healthy in the Heat

Avoid Hyperthermia

Warm weather and outdoor activity generally go hand in hand. However, it is important -- especially for older people -- to take action to avoid the severe health problems often caused by hot weather. Hyperthermia is the general name given to a variety of heat-related illnesses, the two most common forms of which are heat exhaustion and heat stroke.

Regardless of extreme weather conditions, the healthy human body works to maintain a steady temperature of 98.6° F (37° C). In hot weather or during vigorous physical activity, the body perspires. As this perspiration evaporates from the skin, the body is cooled. If challenged by long periods of intense heat, the body may lose its ability to respond efficiently. When this occurs, a person can experience hyperthermia.

Extremely hot weather can cause serious health problems for people of all ages. Take precautions such as the following during hot weather to stay safe:

• Drink plenty of fluids, even if you are not thirsty.
• avoid alcohol and caffeinated bevarages
• Wear light-weight, loose-fitting clothing.
• Wear sunscreen and a hat.
• Schedule outdoor activities carefully.
• If you exercise outdoors, go in the early morning or late evening hours.
• Eat light, regular meals; avoid hot foods and heavy meals.
• Never leave anyone alone in a parked car - infants, children, pets.
• Know the signs of heat related illness.
• Stay cool indoors. If you are outdoors and are not feeling well due to the heat, go inside; all Arlington County facilities (including community centers and libraries) are air-conditioned and open to the public.