When drummer Patrick Bautz is performing, he’s in the zone. He says he doesn’t even think about what he’s doing, it’s just natural. It’s what he calls “the nothingness of drumming.” But not that long-ago, Pat started getting distracted. Physical symptoms were turning that nothingness into something. And it was something that worried him enough to seek help at Mayo Clinic. Pat was diagnosed with Parkinson's disease. Read how deep brain stimulation helped him get back on the stage with the band: h