'Million Dollar Listing' star Ryan Serhant suffered panic attacks—the trick he used to stop them can help anyone with stress - CNBC

'Million Dollar Listing' star Ryan Serhant suffered panic attacks—the trick he used to stop them can help anyone with stress  CNBCRyan Serhant, a top realtor and star of Bravo's "Million Dollar Listing New York," seems to have his stuff together. But despite appearances and all his success, ...