Our body is made up of between 55% to 75% of water and is always in need to constant water replenishment.
How much can our body expel water?
Your lungs expel between two and four cups of water each day through normal breathing - even more on a cold day.
If your feet sweat, there goes another cup of water.
If you make half a dozen trips to the bathroom during the day, that's six cups of water.
If you perspire, you expel about two cups of water (which doesn't include exercise-induced perspiration).
Benefits of water
Water is crucial to your health. It makes up, on average, 60 percent of your body weight. Every system in your body depends on water.
Lack of water can lead to dehydration, a condition that occurs when you don't have enough water in your body to carry on normal functions. Lack of water can also let your body feel tired or make you have lesser energy.
So how much of water do each person needs?
Remember the 8x8 rule. Eight 8-ounce glasses of water a day (about 1.9 liters).
Drinking too much water?
Though uncommon, it's possible to drink too much water. Drinking excessive amounts can overwhelm your kidneys' ability to get rid of the water. This can lead to hyponatremia, a condition in which excess water intake dilutes the normal amount of sodium in the blood.