The body loses water through breathing, sweating, and digestion, which is why it's important to rehydrate by drinking fluids and eating foods that contain water.

Most people who are in good physical health get enough fluids by drinking water and other beverages when they're thirsty, and also by drinking a beverage at mealtime.

Women who are pregnant or nursing may want to consult with their physician about increasing fluid intake.

The Benefits are:

Water Protects Your Tissues, Spinal Cord, and Joints

 Keeping your body hydrated helps it retain optimum levels of moisture in these sensitive areas, as well as in the blood, bones, and the brain.

Water Helps Your Body Remove Waste

Water can keep you from getting constipated by softening your stools and helping move the food you've eaten through your intestinal tract. 

Water Aids in Digestion

Water is necessary to help you digest soluble fiber. With the help of water, this fiber dissolves easily and benefits your bowel health by making well-formed, soft stools that are easy to pass.

Water Prevents You From Becoming Dehydrated

Your body loses fluids when you engage in vigorous exercise, sweat in high heat, or come down with a fever or contract an illness that causes vomiting or diarrhea. If you're losing fluids for any of these reasons, it's important to increase your fluid intake so that you can restore your body's natural hydration levels.

How Much Water Do You Need?

There's no hard and fast rule, and many individuals meet their daily hydration needs by simply drinking water when they're thirsty, according to a report on nutrient recommendations from the Institute of Medicine of the National Academies. In fact, most people who are in good physical health get enough fluids by drinking water and other beverages when they're thirsty, and also by drinking a beverage with each of their meals, according to the Centers for Disease Control and Prevention. If you're not sure about your hydration level, look at your urine. If it's clear, you're in good shape. If it's dark, you're probably dehydrated.