Man's Parkinson's disease symptoms vanish with the push of a button

In 2009, Andrew Johnson, 35, was diagnosed with early onset Parkinson's disease. Last November, and again in February, he underwent a procedure, during which surgeons implanted a device in his brain that controls his tremors. Today, you'd never guess he suffers from Parkinson's – but watch what happens when he turns… » 6/27/13 7:40am 6/27/13 7:40am