Credit to Affectiva -- for a medical bracelet, the Q Sensor looks delightful. The item you're peering at here has been developed by the aforesaid Massachusetts-based startup in order to give a voice to those who may not have one, and in theory, it can provide vital information to caregivers long before a breakdown takes place. Particularly with autistic children, who often cannot communicate their stress levels effectively, the Q Sensor is able to "detect and record physiological signs of stress and excitement by measuring slight electrical changes in the skin." From there, it can send signals to doctors, parents or caregivers, and those folks can react accordingly to information that they would otherwise not be privy to. Put simply, the band works by detecting subtle moisture changes under the skin when the "flight or fight" mode is initiated, and while even the creators admit that such a response isn't absolutely indicative of stress, it's generally a signal worth paying attention to for one reason or another. Purportedly, a beta version is set to go on sale to researchers and educators later this month for $2,000, and there's a video just after the break if you're still struggling to grok the purpose.