Today is my second day of complete rest. Yesterday I was pretty much spent from head to toe. I was tired and lethargic. I'm not talking like lethargic like I am chronically ill or anything, just beat from a lot of working out. I took yesterday off and decided today wouldn't be a bad idea.
In addition to my high speed stationary bike sessions, I really think these random day or two day stretches that I take off completely are very important to me staying pretty much injury free for years. It's important for the body to have time to rest. Whenever you train hard for a race or just a significant stretch of time, your body begins to suffer.
It is ok for you to take a day or two off. Nothing is going to happen. It's not like your training is going to fall off dramatically from this. Even some elite athletes take a day here and there to clear the mind and body. All elite athletes take a couple weeks off at the end of a season.
In fact, research shows that it takes weeks for a fit individual to begin to lose any significant level of cardiovascular fitness or strength. A day or two is good for you.
I also like to pair these breaks with crappy weather when I can. Its a cold stretch right now, so double bonus. I would probably have suffered through the lethargic feeling for at least a simple jog if it was a good weather day.
Do you take a day when you don't feel good?