About rest in poker :
I know a lot of professional players at my $ 2.5 / 5 limit. They have their own schedule, that is, 3-6 hours of play, then rest and after 5 hours again the same way. For some, it helps them fight tilt while playing.
For most people, poker is a job! And as in a regular job, you have time to rest.
In the modern world there are many examples when people work a lot and do not pay enough attention to rest - such people often suffer from various diseases. heart and not only. So take care of yourself🙂