Last year, John Allison, an ECD at 4Creative, Channel 4’s in-house creative agency, was diagnosed with suffering from Attention Deficit Hyperactivity Disorder, a condition he has lived with all his life and which has had a significant impact on his personal life and work. Here he talks to CR about ‘coming out’ to colleagues and friends as suffering from a mental health condition, and the importance of asking for help if you are struggling