Tattletale tooth sensor tells your doctor if you've been smoking or overeating

It's official: humans suck at self-discipline so much, researchers thought it necessary to create a tooth sensor that detects if you're smoking or stuffing your face and can tell doctors about it. The National Taiwan University Team led by Hao-hua Chu recently tested prototypes by gluing them to eight people's dentures. Thanks to the device's accelerometers, it was able to differentiate between chewing, smoking, speaking and coughing 94 percent of the time. It would've been better if it could al...