Water quenches your thirst and cools you down on a hot day, but it does a lot more than that. Water makes up 60 percent of your body weight and is used by every tiny cell in your body to carry out bodily functions. Without water, you can’t survive more than a few days—at most a week. Your body is constantly losing water through sweating, breathing, and digestion, so you must regularly replenish lost fluids or your body will become dehydrated.
If you’ve ever wondered what the big deal is about drinking water, wonder no more. Here are a few ways water is essential to life and health.