In Tribes, this week's This American Life podcast, a woman with "Autonomous sensory meridian response" describes her curious neurological condition. When she hears boring, whispering voices, she experiences pleasurable, relaxing "brain shivers" that are so nice, she finds herself watching the Home Shopping Network for hours (and hours!) at a time. There's a whole YouTube subculture of ASMR videos in which (mostly) women whisper quietly as they narrate their jewelry condition, or role-play giving you a shave.
There's not much science on ASMR (yet), but a Sheffield university prof doesn't discount the possibility that it is real.
ASMR subculture feels like something out of a very good recent William Gibson novel, and it's apparently real.