The 'Righteous Gemstones' actor said he was previously diagnosed with stiff-person syndrome before an expert clarified that was not the case

Adam Devine had a devastating accident when he was a kid and is still dealing with the fallout. But a recent diagnosis of stiff person syndrome was off the mark.

Adam DeVine is still dealing with the physical impacts of a childhood accident, but his prognosis seems much better than when doctors told the Righteous Gemstones actor that he was dying.