ASMR stands for Autonomous Sensory Meridian Response. It is a relaxing, often sedative sensation that begins on the scalp and moves down the body. ASMR is triggered by specific audio or visual stimuli, such as whispers, tapping, or hair brushing, and can create a tingling, static-like, or goosebumps sensation in response to these triggers. When experiencing ASMR sensations, some people report pleasant feelings of relaxation, calm, sleepiness, or well-being.

ASMR is a popular trend on YouTube, with many ASMR videos available online. These videos often create ASMR-inducing sounds to play out social situations with actions that trigger the sensation. ASMRtists often employ objects, especially food products, to create the tingly effect: crinkling wrappers, chewing candy, cracking open cans. Beauty products, in fact, play a starring role in the trend. Makeup tutorials have long been popular on YouTube, but after viewers realized how relaxing they were, many tutorials now double as ASMR videos.

In summary, the full form of ASMR is Autonomous Sensory Meridian Response.