Dehydration

It’s a warm summer day, and you’re feeling parched. Make sure you reach for a tall glass of water. You’re already beginning to feel the signs of dehydration.

Dehydration is a condition in which you lose so much body fluid that your body can’t function normally. It occurs when you lose more fluids than you take in. Dehydration may happen on a particularly hot day if you sweat a lot, or if you’re sick with fever, diarrhea or vomiting. It can also occur if don’t drink enough water, or if you’re taking a medication that increases your pee (urine) output.

When you aren’t properly hydrated, your body’s natural response is thirst. You should respond to thirst right away by drinking fluids — preferably water. You can usually treat mild dehydration by drinking more fluids. But dehydration isn’t always easy to spot. It can be found in the aging parent who forgets to drink water or the fussy baby who can’t tell you they’re thirsty. Make sure to keep your loved ones hydrated. If you or a loved one has a moderate to severe case of dehydration, you may need to go to the hospital to get IV fluids. Left untreated, severe dehydration can be fatal.

What does water do for your body?

Up to 78% of your body is made of water. Your brain is made up of 73% water, and so is your heart. Your bones are 31% water, your muscles and kidneys are 79%, and your skin is 64%. A whopping 83% of water makes up your lungs.

Water helps:

• Aid digestion and get rid of waste.
• Your joints work. Water lubricates them.
• Make saliva (which you need to eat).
• Balance your body’s chemicals. Your brain needs it to create hormones and neurotransmitters.
• Deliver oxygen all over your body.
• Cushion your bones.
• Regulate your body temperature.
• Act as a shock absorber for your brain, your spinal cord and, if you’re pregnant, the fetus.

Water is important to your body, especially in warm weather. It keeps your body from overheating. When you exercise, your muscles generate heat. To keep from burning up, your body needs to get rid of that heat. The main way your body discards heat in warm weather is through sweat. As sweat evaporates, it cools the tissues beneath. Lots of sweating reduces your body’s water level, and this loss of fluid affects normal bodily functions.