Why do I get a headache when i'm dehydrated?

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Why do I get a headache when i'm dehydrated?

2006-11-09 09:00:21 · 3 answers · asked by inquiring mind 2 in Health ➔ General Health Care ➔ Pain & Pain Management

3 answers

Because the dehydration causes your brain to shrink away from the skull.

The pain receptors pick that up - therefore headache

2006-11-09 09:02:31 · answer #1 · answered by Anonymous · 1⤊ 0⤋

Weatherman is on the right track. Dehydration between the skull and the brain is also the primary reason for people getting hang overs. When I used to drink I would always drink a quart of water before going to bed. Only 1 hang over...ever.

2006-11-11 17:57:35 · answer #2 · answered by iraq51 7 · 0⤊ 0⤋

lack of oxygen so i was told. just drink alot of water.

2006-11-15 14:55:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋