News to me but this type of video is called ASMR which is short for autonomous sensory meridian response and is supposed to induce a “low-grade euphoria” just by listening to it. Wikipedia defines ASMR as a term used for an experience characterized by a static-like or tingling sensation on the skin that typically begins on the scalp and moves down the back of the neck and upper spine….(aka the willies because this dudes voice creeps me out). This might just be the most viewed snowlerblade video of the day….what a time to live. 
images from wikipedia