China's rehab centers are no strangers to using technology to treat addiction. The latest approach, however, is rather unusual. Shanghai drug rehab facilities (not pictured here) are trialing a combination of VR, eye tracking and skin sensors to both aid in recovery and gauge its effectiveness. Recovering addicts have to look at images and video illustrating the effects of drugs, and the eye monitoring can help determine their reactions, including whether or not they're paying attention in the first place. Think of it like a (relatively) gentler version of A Clockwork Orange's Ludovico treatment -- patients can't look away from the unpleasant imagery without their overseers knowing.