Scratching your head or your chin when you think?
A thought just made my head itch- When we think, the blood circulation to your brain increases, starving the nerves in your cranial skin. They get sensitized, and send a "itchy" message. Is that a sign of borderline cranial blood flow, or does my beard have dandruff?
A thought just made my head itch- When we think, the blood circulation to your brain increases, starving the nerves in your cranial skin. They get sensitized, and send a "itchy" message. Is that a sign of borderline cranial blood flow, or does my beard have dandruff?
via International Skeptics Forum https://ift.tt/3CJ44Lg
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