resuming power

The past few days I tried to take it easy: a.m. I would run 17-18km at the dunes, and p.m. I would go to the gym for a super easy session of cycling or spinning class, abs and weight lifting and of course sauna.
I suspect what they say, that 2 weeks of hard training must be followed by 1 week of easy training, is more than true: my body could do no more! This week I am feeling rested, so I will try to train harder. This morning I ran 19km at the dunes, 2hrs in total.