Science Daily May 10, 2026 • 07:17

Scientists discover the brain’s hidden “stop scratching” switch - ScienceDaily

Scientists discover the brain’s hidden “stop scratching” switch - ScienceDaily

Scientists have uncovered a hidden “stop-scratching” signal in the nervous system that tells your brain when enough scratching is enough. The discovery centers on a molecule called TRPV4, which acts like part of an internal braking system for itch relief. In …

When an itch strikes, scratching usually brings relief after a few moments. Scientists have now uncovered part of the biological system that tells the brain when enough scratching has occurred. The d… [+3923 chars]

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