Insomnia Twittering last night, I saw the Journal of Adolescent Health (US based, looks pukka) tweet "Just so you know, ROGD is not a thing". Not attached to any article or link. Some of those who had challenged me on a wholly different UK based thread piled in very cheerily, rubbishing the Littman study again, but there were a few dissenters. This morning, the tweet has gone.