Why You Have To Scratch That Itch

NPR- May 23, 2013

Everybody itches. Sometimes itch serves as a useful warning signal — there’s a bug on your back! But sometimes itch arises for no apparent reason, and can be a torment…But it now looks like itch has its own dedicated highway from skin to brain…It’s a neurotransmitter called natriuretic polypeptide B, or Nppb.

Far better than riches
Is to scratch when it itches.

(Anon)

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