I donât know where you stand on this issue, but I really donât like anything electrical or mechanical messing with my head (curling irons, hair dryers, and CAT scans not included). So you would understand why Iâm more than skeptical about this USB-powered Brain Massager. The thing basically creeps the big Jesus out of me with its octopus legs that claim to be able to detect areas of stress with their tentacles and then determine which part of your brain needs to be treated most via a vibrating message. The original website for this product was in Japanese and a Google translation only confused me more, but I think the thing can also be used to message other parts of the body like neck and shoulders, though again Iâm a little wary of having an electric octopus vibrate near my spine. The Brain Massager can be powered by the USB port of your PC or two AA batteries so either way itâs not very nature-friendly as compared to having another human being do the same thing for you. P.S. the website claims that the massager is not a medical product and since I couldnât find any medical or other certification saying the thing won’t go out of control and poke you with its electrical tentacles all over, Iâll advice to be a little cautious if you do indeed decide to buy it.