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ASMR slime videos are hugely popular right now, and that may have something to do with a phenomenon known as autonomous sensory meridian response (ASMR).

Molly Begnaud is the face behind the viral Molly Mashes ASMR TikTok account filled with clay-cracking, soap-cutting, and slime videos.

The science is nascent and a little squishy, but researchers are trying to better understand ASMR — a feeling triggered in the brains of some people by certain soft sounds and gentle gestures.