it's called asmr. that generally starts at the top of the head and moves back down the neck and across the shoulders. dr tom 0stler is one of a small number of academics researching the intense and calming effect certain intimate sounds have on many of us. there are over 10 million asmr videos on youtube alone. along with so—called satisfying videos such as this one. so we asked members of a dance academy to explain the appeal. very tingly. very, like, ah. i think itjust relaxes me. like, i'm able to watch it. i've been given a massage in my brain. there's too much stress so when you find some free time you just like to listen to some calming and relaxing sounds. for some, asmr is a career. emma smith, known as whispersred, makes asmr videos for a living in what she calls her tingle shed. what are you setting out to do? calm the viewer. i am definitely an asmr experiencer. because that was like there was a waterfall in my head. asmr has entered popular culture. this year american teenager billie eilish

and despite the asmr intro, trump's impeachment trial is already filled with drama.ust look at the all-star defense team president trump put together. this is an insane team trump collected. it's got ken starrer, the lawyer who is famous for doing the investigation that led to bill clinton's impeachment. and it's got alan dershowitz, famous for defending o.j. simpson. they are perfect for trump because they have experience with super guilty people and super horny presidents. it's a great combination. ( laughter ) but trump's lawyers may want to polish up their defense strategy. things have gotten off to a rocky start. >> the president's legal team offering a first glimpse of their defense, that the president did nothing wrong, did not commit a crime, and even the democrats' argument of abuse of power does not rise to an impeachable offense, something lawyers alan dershowitz maintained over the weekend. >> the articles of impeachment are two non-criminal actions. >> but many constitutional lawyers disagree. alan dershowitz himself once argued the opposite during the c

. >> asmr stands for autonomous sensory meridian response. satisfying visuals or hearing sounds. >> this will make me feel relaxed by the sound that it makes and the feeling of it. >> and smelling. >> kids are becoming entrepreneurs and starting slime businesses. they may be selling it illicitly in schools. they're also creating etsy shops and giving back to charity. of we've had over 50 you thousand guests -- 50,000 guests. we raised nearly $75,000 for mental health. the world is so messy right now and we all need play more than ever. lauren: they expanded the concept nationwide. cheryl: i wanted to say, this smells really good. it smells like a body cream. it's spearamint and juke lip tuss. what a -- juk eucalyptus. lauren: i banned slime in my house because it makes a mess. i went to this institute and learned some tricks and we made slime yesterday. cheryl: a lot of my friends that have children say their kids are into making their own slime, it's become a family affair. lauren: there's a science to it. that does it for us on "fbn: a.m."