Headache & Dehydration

Lack of water in the human body, also known as dehydration, can definitely be a cause of headaches. When you don't drink enough fluids, your body's water balance gets disrupted, which can lead to a number of issues, including headaches.
Here's a breakdown of how dehydration can cause headaches:
Brain shrinkage: The brain is made up of about 80% water. When you're dehydrated, your brain can literally shrink slightly. This shrinking pulls on the tissues surrounding your brain, which can trigger headache pain.
Electrolyte imbalance: Electrolytes are minerals in your blood that help your body function properly. When you're dehydrated, your electrolyte levels can become imbalanced, which can also contribute to headaches.
Blood vessel constriction: Dehydration can cause your blood vessels to constrict, which can reduce blood flow to the brain. This reduced blood flow can also contribute to headache pain.
If you're experiencing a headache and you think you might be dehydrated, the best course of action is to drink plenty of fluids. Water is always the best option, but you can also rehydrate with clear broths, sports drinks, or even some fruits and vegetables with high water content, such as watermelon or cucumber.
If your headache is severe or doesn't improve with drinking fluids, it's important to see a doctor to rule out other potential cause.
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