[d12345m]

This isn't my domain by any means, but one common argument for long hours that is that patient handoffs during shift changes can cause information loss, and thus cause medical errors which lead to worse patient outcomes. The shifts are intentionally kept long to reduce the number of times that this handoff has to occur.

Again, this isn't my wheelhouse at all. I'm just repeating something I hear often when this topic comes up.

[Noumenon72]

At the plastic factory, I preferred 12-hour shifts to 8-hour for this reason. I just got more efficient as my shift went longer. I also felt the loss of efficiency whenever I took a vacation. The thing I disapprove of is the sleep deprivation.