By Kat Romero ASMR, or autonomous sensory meridian response, became the most searched term on YouTube in 2023, with a total of 79.5m searches. It’s an online powerhouse, redefining the way people think about relaxation. It’s dificult to overstate the reach of these videos that feature gentle tapping, hair brushing, face stroking and soft whispering, which elicit tingling responses from viewers. But could ASMR be set to break out from behind the screen and become a staple treatment in our capital’s spas? And is a facial with a side of soft whispers and gentle taps something people want to pay f…