Another concern is that dehydration reduces blood volume, which can cause the body’s tissues and organs, including the heart, ...

After all, more than half of the human body is made ... in your heart. Your heart is responsible for sending blood to other parts of the body. If you are dehydrated, you may experience low blood ...

"Dehydration can kill," said Dr. Donald Kirby, director of the Cleveland Clinic's Center for Human Nutrition ... such as increased heart rate or body temperature, that is another indication ...