 Rigidity, loss of arm swing, standing up lordotically. You notice when he turns, it's kind of end block turning. It's not a quick turn. So that's one of the hallmarks of Parkinson's is rigidity and bradykinesia, slow movement. That's Dr. Tom on NBC, the Parkinson's expert. By the way, the reporter said, isn't it tough to diagnose Parkinson's? Pitt said, no, not at all. No, I do it all the time.