I also found that keeping weird hours / working weekends / moving shifts (not my choice, in my personal case) really messed with my social life and happiness. Not being able to hang out with people or do things because of having to stay up all night on a 12-hour shift on the weekends was pretty rough, and the constant rotation meant it was hard for others to remember when I'd be available. Lots of shift swapping on the team further confused the situation.