Anecdata: If it were possible to train yourself to be a morning person, then I would have done it by now after several years working 1st shift (8 AM start). Pr

Anecdata: If it were possible to train yourself to be a morning person, then I would have done it by now after several years working 1st shift (8 AM start). Previously I was working 2nd shift (2 PM start). I never really have gotten used to getting up to be at work by 8 AM. I do it, but I always feel sleepy until about noon. Last week, I had to cover for an absent coworker and worked 2nd shift for the first time in years. All last week, I felt more alert, I was more productive, and I slept better.