Also, in the weight loss process you are breaking down tissue, and water is essential in helping to remove all of those byproducts out of your body. You said when we get headaches it may be because our brain is lacking water. You can get tired in the afternoon or you can get a headache.
Water is essential for really nice textured skin.
If they say it's bright like lemonade, I know they're not getting enough. Water is also in food and beverages. Fruit can have up to 95 percent water. A slice of watermelon. Some beverages can work against you.