There are numerous ways it effects your body, it <span>controls weight by burning calories, improves the functioning of the cardiovascular system, placing a lower strain on the heart, and increases an athlete's energy level while improving the quality of sleep.</span>
Think about it, for the first one, blood is primarily made up of water. dehydration is the lack of water. lower volume of water in the body=lower blood volume.
second one, low blood pressure
third one, not sure... sorry
