Alan Alda is opening up about the realities of living with Parkinson’s disease as a working actor, especially one now in his 90s. The star, who celebrated his milestone 90th birthday in January, was diagnosed with the debilitating condition in 2015. He went public with his diagnosis in 2018, although has continued to act, most recently appearing in The Four Seasons. © Getty ImagesAlan Alda opened up during a recent conversation about living with Parkinson’s disease and turning 90 The actor recently appeared at the 92NY in New York City for an event titled “Alan Alda, Joy Behar and Roger Rosenblatt in Conversation: More Rules for Aging,” where he candidly opened up about aging in the public eye, being treated like a senior citizen, and living with Parkinson’s, per People. At one point, Roger asked the M*A*S*H star how he wanted to look back and “think about yourself, not in an egotistical way, in an artistic way, but just in a kind of general biographical way.” Recommended videoYou may also likeWATCH: Hollywood’s oldest legends still …