Relieves Headache
For some people, dehydration can cause headaches and migraines. The body’s tissues, including the brain, constrict when dehydrated. As the brain contracts, it pulls away from the skull, places pressure on the nerves, and produces pain. The brain swells to its original size, and the pain subsides after hydrating the body with water and other liquids.
A research of 102 men discovered that increasing daily water intake by 50.7 ounces (1.5 liters) led to significant reductions in migraine symptoms as measured by the Migraine-Specific Quality of Life scale. In addition, 47 percent of the participants alleviated their headaches, compared to only 25 percent in the control group.
Painful headaches frequently coexist with other dehydration symptoms, including fatigue and dry mouth. Headaches due to dehydration may improve with at-home treatments such as drinking water, resting, and over-the-counter pain relievers. If symptoms of severe dehydration appear (dizziness or confusion), seek medical help immediately.
