Scratching the surface of how your brain senses an itch

Light touch plays a critical role in everyday tasks, such as picking up a glass or playing a musical instrument, as well as for detecting the touch of, say, biting insects. Researchers have discovered how neurons in the spinal cord help transmit such itch signals to the brain. The findings could help contribute to a better understanding of itch and could lead to new drugs to treat chronic itch, which occurs in such conditions as eczema, diabetes and even some cancers.
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