The last of the 7 essential nutrients for your body to run smoothly is water. We don't always think of water as a nutrient, but it is vital to the human body. It doesn't have any caloric value and is not a source of energy.
What water does do is transport nutrients and waste in and out of cells. Water is a necessary part of all digestive, circulatory, and excretory functions of the body. In addition, water helps maintain the body temperature.
If you have every been really dehydrated, none of your body functions works properly including your brain. I once got very dehydrated while doing a lot of physical activity on a very hot day. At one point I could not speak except for a word here and there. As they got me cooled down and I started drinking water, after about 15 minutes they asked me to recite the alphabet. I could not do it. It astounded me that I was totally unable to recite the alphabet, but then I knew just hoe dehydrated I had gotten.
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