As someone with a father and a wife who are both physicians, yes. In both cases they started working to get into medicine in high school, pushed hard in college

As someone with a father and a wife who are both physicians, yes. In both cases they started working to get into medicine in high school, pushed hard in college, and then had med school and residency. That alone is 16 straight years of normalizing sleep deprivation. Time spent studying and working is regularly 80+ hours per week, certainly from med school onward and certainly the year spent studying for the MCAT. If they start at 16 and finish their residency at 30 or 32, that's the only life they've ever known for all of their formative years. They cannot relate to people with a normal schedule because they have not experienced it.