| Is it weird to not have headaches?
Actually, I have two questions.
1) What causes headaches? The brain doesn't have pain receptors, so it can't be pain in the brain itself. I've heard that a headache comes from stretching or other distortions of the blood vessels that supply the brain: they do have pain receptors. Is that correct?
2) Is it unusual for someone to have never had a headache? I have never had one, and I'm 42 years old.
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