And I remember, during my third year of medical school, during your rotations, I would go and I would volunteer for the nighttime emergency - room rotations, which would start at 10:00 p.m. and go
till 6:00
a.m. And then I would go and sleep from 6:00
a.m. until
noon, and then I'd go to the office from
noon until 10:00 p.m. And that was my cycle.