Mark addresses issues relating to mental health for television, radio, print, and online media around the world.

He has been featured in or commented on hundreds of stories related to mental health. His appearances have included such media outlets as CNN, CNBC, USA Today, CTV National News, CTV News Channel, CTV W5, CanadaAM, CTV Your Morning, The Canadian Press, CP24, Newstalk, Virgin Radio, Business News Network, BuzzFeed, the Huffington Post, The Mighty, Yahoo News, Entertainment Tonight, eTalk, PageSix, Perez Hilton, Bustle, CBC News, CBC Radio, Global News, Chatelaine, Canadian Living, the Globe and Mail, the Financial Post, the Toronto Star, the Toronto Sun, the Montreal Gazette, the Ottawa Citizen, the Wall Street Journal, the New York Daily News, the Independent, the Daily Mail, the Chicago Tribune, and many others.