It's interesting that a lot of people's mixed rotas that include night shift also include unsocially early day shift starts. 11/12/13 hour shifts are much easier for managers to rota- you know, those folk who are at home for 6.30pm for dinner with the family; then free from 5.30pm Friday til 7.30 am Monday, while you're starting work at 7am after an hour's drive for a 12-13 hour shift; or arriving at 7pm for a night shift.
HCP.
Back 'in the day', in my line of work, you escaped nights by specialising. Not any more. I got an exemption once nights were reintroduced into MRI. (Oh, and everything else medical imaging in a DGH) But my colleagues, all much younger than me, thought 'great'! Three night shifts then freeeeedom. Then pull sickies every second week. And suddenly realise there's no overnight day care once they have DC if their partner has gone.
Those who prefer permanent nights, and yes, obviously they're out there- great. But for everyone else, I believe they damage your health, mental and physical. And can wreck relationships as you tag team your family.
However, years ago I worked in a DGH in Australia. 'Night' shift, was midnight to 7am. You did one seven day stretch of them 2 or 3 times a year. There was a twilight shift of 4pm to midnight, too and they came around 4-6 times a year, as two of you were on.
So maybe the issue isn't so much night shift, it's that they're 12-13 hours long? And/or the commensurate morning shift starts too early?