I kind of agree with both yourself and Andy. Work is important because it is growth and there is nothing not even family without growth and invention but... sometimes the best way to get more productive is to take breaks you may in the short term be more productive by putting in ten hour shifts but keep that up for a couple of years and your heading for an early grave.

I had a stressful year last year at the same time I 
Moved house and
conducted two big ETL projects : those kind of projects where you know if it goes well no one will notice but if it goes badly people might be out of a job.

I worked harder than was good for me in the belief that I would be able to take it easier this year. I have been and the hard work has benefited me this year despite the fact that I am not working as hard now. 

I think it is a good idea to try and keep fit so you can literally work harder or at least it helps me cope with stress.

I try to
Not eat till I am 100% full - when I got married my diet significantly improved but the amount I ate dramatically increased. I managed to get my wife to accept that I didn't need quite as much as I was being given!
Regularly run short distances - typically 5km twice a week with one swim. My wife likes walking and I get out 4 or 5 times with her but I really need the runs as the walks don't loosen me off enough.

Its a balancing act that I get right some years and wrong others even if I keeled over before 50 I would count myself lucky. I enjoy my work but it can mean I work too hard and I see the signs every now and then. I am however very motivated to work hard on automation as I feel it offers the opportunity to work less hard but produce more sometime in the future.

Now automation is so addictive I can overwork myself trying to achieve it.