Perhaps sitting still in general is not good, especially not for children.<p>My son will go to school next year and I almost feel a physical pain myself when imagine him having to sit still for hours on end. I think I suffered because of that a lot in school, too.<p>I also credit not having too many back issues (fingers crossed) to sitting sloppily in my chair most of the time, rather than in an upright (90°) position. Tilting backwards with the chair might be more relaxing for the spine.<p>I don&#x27;t have a good solution, though. Perhaps it helps to design the classroom differently, let kids walk to learn stations and communicate with other kids and so on.