'Many fail to realize how crucial an issue this is. It is my strong belief that the single most powerful intervention the majority of Americans can make for their physical health would be to stop drinking all sodas and juices and replace them with health promoting pure water. This is such an important issue due to the fact that nearly 75 percent of the US is overweight and the number one source of calories is sugar from soda. Needless to say diet sodas are even worse.

Of course, water is essential for your survival. Every day, your body loses water through urine and sweat. This fluid needs to be replenished, for while you can survive for months without food, without water you wouldn't last more than a few days. If you get the fluid/water replacement issue right, then you have made one of the most important and powerful steps you can in taking control of your health.

But just how much water do you need to drink to replenish what you've lost?'

Read more: The Case Against Drinking Six to Eight Glasses of Water a Day