from slashdot:
Thync, the world's first wearable that alters a user's mood has released the first set of data that shows its device reduces stress without chemicals. The study found
that "the levels of salivary -amylase, an enzyme that increases with
stress, as well as noradrenergic and sympathetic activity, significantly
dropped for the subjects that received electrical neurosignaling
compared to the subjects that received the sham."
User review here:
http://qz.com/325070/this-brain-altering-wearable-could-end-our-dependence-on-drugs/
Compare to the Fisher Wallace Stimulator ($600-700) for pain, anxiety, depression:
http://www.fisherwallace.com
Different device, ($30), same manufacturer, good reviews:
http://www.amazon.com/Tens-Handheld-Electronic-Pulse-Massager/dp/B007TOJ948/ref=sr_1_1?ie=UTF8&qid=1423831243&sr=8-1&keywords=fisher+wallace+stimulator