A wrist bracelet zaps you with 340 volts

The latest breakthrough in self-help gives you a zap every time you do something you shouldn't. Called the Pavlok (after the scientist Ivan Pavlov, who conditioned dogs to drool) the manufacturers claim their device monitors you in real-time, administering a volt of up to 340 volts every time you do something like smoke, bite your nails, or secretly snack.

The makers of  Pavlok claim after you can shock yourself to a better you in just five days.