However I just wanted to express what I saw when I was a student. I saw people that are lost and dont know how to regulate because they don't percieve excessive screen time as something unhealthy. Not claiming I was enthusiastic about every single morning class also, which is understandable as some days I just went to party or had long study sessions for some exam or project. And I also struggled with excessive screen time myself. When I cut that out I noticed a huge amount of energy boost in my life.

The only thing I stand behind and regard as a fact in my comment is the rythm of the natural environment. I don't see how we could structure our society if not in respect to the natural environment of sunrise/sunset.