ASMR (Autonomous Sensory Meridian Response) describes a tingling sensation that typically begins on the scalp and moves down the back of the neck and, for some, extends to the spine or limbs. ASMR can induce pleasant feelings of relaxation, calm, sleepiness, or well-being.

This sensation can be triggered by hearing certain sounds, a soft voice, watching someone carefully perform a task, or receiving personal attention. Common ASMR triggers include whispering, soft touch, tapping, crisp sounds, slow movements, hair brushing or hair play, and scalp massage, amongst others.

While ASMR is a subjective experience and not everyone experiences it, those who do often find it to be a valuable tool for enhancing their mental and physical well-being. Viewers often describe how watching ASMR videos has specifically helped them overcome insomnia, anxiety, PTSD, and depression. They also use these videos for general relaxation, pain management, focus, and as a means of falling asleep more quickly.