Playing Candy Crush Saga non-stop for 8 weeks ruptures man's thumb tendon

BlackBerry users from days of yore may remember the condition that was jokingly dubbed BlackBerry thumb -- that is, a repetitive strain injury caused by tapping the device's buttons over and over again for long periods of time. Well, that condition can develop from any repetitive thumb use, and as this story reveals, one modern candidate may be the smartphone …