Finding part of your body shaking involuntarily can be distressing, especially when there's no clear cause. Hand tremors, for ...

But simply relaxing didn't stop O'Brien's tremors. What did is a procedure called "deep brain stimulation." It all starts in O'Brien's head. "There are two very small wires that go into the brain ...

head of the Neural Circuits Dysfunction Lab, said, "This is the first large study to clearly show a link between better-preserved dopamine levels in the caudate and the presence of rest tremor.