Water. It's so easily taken for granted. Turn on the faucet in the kitchen or bathroom, and it comes gushing out. Sit down in a restaurant and a glass of it automatically appears. It seems to be conveniently available most everywhere. So, if it's everywhere, why aren't you drinking more of it?

Water is an essential nutrient and water deprivation kills faster than the lack of any other nutrient.

The amount of water you need depends on your energy needs. The average adult needs between eight to 12 cups of water daily.

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It's summer in Iowa and your body's cooling mechanism has problems keeping the body cool because sweat doesn't evaporate in hot and humid conditions. As long as you can sweat and the sweat evaporates, you can cool yourself. But if sweat can't evaporate, you start to overheat.

If you exercise--golf, bicycling, hiking--during the hot and humid weather, you have to be alert to the warning signals before being overheated turns into something more serious, like heat exhaustion or heat stroke.

When you're active, your muscles create heat and that heat is absorbed by the blood. As your core temperature begins to rise, your brain triggers two systems--it increases the blood flow to the skin's surface so the blood can be cooled and it tells the sweat glands to produce sweat.

Even mild dehydration can take its toll. You could experience coordination problems, fatigues, and impaired judgement.

To battle the effects of the heat and humidity:

• Stay well hydrated and eat salty snacks.
• Rest, out of the sun.
• Wear clothing that allows for evaporation.
• Wear a brimmed hat.
• Cool heat exhaustion patients with lots of water. Let them rest.

If you have a health-related question, or to make an appointment, call UI Health Access - 800- 777-8442 or 384-8442.

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