Glad i'm not the only one wondering!
I accept that you can take a sort of Macho view to the workload as in i can take anything they throw at me and just get on with it but its the long term effects it has on you and the sustainability. I think as 40&80 wisely says it will catch up with your body eventually! It would be nice to look at QR as long term commitment but the more i read the more it seems that may not be possible.....
Hopefully there are guys there with families making it work?
Cheers