Stephen LaBerge practiced this technique at Stanford University to kind of prove that it was possible to develop one's lucid dreaming skills, and since he obviously wanted fairly consistent data he probably practiced it more or less non-stop those three years.
I am wondering, wouldn't it be quite stressful to maintain this kind of concentration for so long?
He did plot data for every single month from start to finish, so he must have been quite active with it all the time.
Does anyone have any experience in this, or any ideas how to make it easy to keep it up like he did?