I totally agree with you @rok-sivante.
I have been posting nonstop daily on steemit for over 9 months now and during these times, I have been having slight headaches and was taking drugs to cure it and it still didn't go.
But this recent down time on steemit made me not to post anything yesterday and I used the whole day to rest and Lo and behold the slight headache vanished.
So you are right, taking a break is really important in life.