I don’t think that it is a matter of losing their mind, it’s that they operate at a different pace. Depending on the base, they are usually used to only working with very senior pilots and flight attendants who just do their job without needing supervision. There just isn’t that much to deal with on most days. Review one set of paperwork, have one briefing, and decide when you want to eat or sleep. The ones who look like the living dead are usually those who eat everything that is offered, drink more than they should, don’t exercise, and don’t get proper rest. I’m hoping that a large number of WB first officers who displaced into NB captain seats decide to stay when things turn around. I’d much rather go back to WB flying than have to upgrade when the pay protections end.