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What is ASMR?
It stands for "Autonomous Sensory Meridian Response." It typically refers to the "tingly feeling" that travels from the head downward that some experience in response to certain sounds, feelings, or descriptions. Merriam-Webster

ASMR is a tingling sensation that usually begins on the scalp and moves down the back of the neck and upper spine. A pleasant form of paresthesia, it has been compared with auditory-tactile synesthesia and may overlap with frisson.Wikipedia

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