What's happened to the real hard-men who do 50-60 miles a day and then are up for mega-marathons every weekend?
Ha ha ha . They are the walking dead with the 1000 yard stare that you see waiting at the start line.
Yup ,it's tiring and you are sometimes glad to get to Friday night , but then every day isn't at a flat out pace.
When I was trying to get silly miles in last Summer I would fit in 2 chain gangs after work, which was hard.
The thing that made it a lot easier (for me) was changing my eating pattern during the day so that I had enough energy for it all.
It paid off last year so going with (almost) the same approach again.
Oh , and I don't do the 1000 yd stare