I try to rest - take a day off - about every 7 to 10 days or so. Sometimes it's intentional, sometimes not and in ways it does me a world of good and in ways it doesn't. After a day of rest, although my muscles are less sore and seemingly more prepared for the task ahead, I think my body has a difficult time getting out of the "rest mode". The first day back at it is much more difficult than the last day before I rested. I go out fully stretched and nourished and still it's as if it's uphill into headwinds the entire way on that first day afterwards. I tried resting for 2 days and it made it about twice as bad. Does anyone else share this phenomenon?