Water makes up more than half of our body weight, and a person can't survive for more than a few days without it. Why? Our body has lots of important jobs and it needs water to do many of them. For instance, our blood, which contains a lot of water, carries oxygen to all the cells of the body. Without oxygen, those tiny cells would die and the body would stop working. Body uses water in all its cells, organs, and tissues to help regulate its temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water. The amount of water we need depends on a variety of factors, including the climate we live in, how physically active we are, and whether we're experiencing an illness or have any other health problems. Water protects your tissues, spinal cord and joints acting as a cushion. It also helps body remove waste. Increasing our fluid intake will cure constipation. It helps in digestion and prevents body from getting dehydrated. We can help our body by drinking when we're thirsty and drinking extra water when we exercise and when it's warm out. If so, our body will be able to do all of its wonderful jobs and we'll feel great!