Unfortunately, it is little understood. Audiologists work with some people. MH professionals don't have many answers either. Earplugs and excellent noise reduction headsets seem to be common for the ones who suffer. I wear earplugs when I eat with my sister and BIL. Otherwise the chewing, fork against plates and teeth as well as my BIL who slurps out of his mug, swishes the stuff around his mouth and then loudly swallows drives me batty. My sister seemed to disregard the notion that such a condition existed, but I swear, since I sent her an article about it, she's eating quieter?