I sleep on my stomach with my head under a bunch of pillows so if someone wants to come in and try to kill me they can't tell if I'm there or not, so they'll just leave.
I have never yet met a healthy person who worried very much about his health, or a really good person who worried much about his own soul.
There are countless studies on the negative spillover of job pressures on family life, but few on how job satisfaction enhances the quality of family life.