How Dehydration Affects Your Heart Adequate Water intake is necessary for healthy body function, but many overlook exactly the impact dehydration has on heart health. Whenever fluid loss exceeds fluid intake, whether through sweating, breathing, exercise, illness, or daily bodily functions, your body begins to work harder to maintain balance. https://www.tumblr.com/dramitpatil/820316874399203328/how-dehydration-affects-your-heart?source=share