when i was younger id take advantage of my rest days n do what id call active rest,go mountain climbing,ride youe mountain bike thru the hills n hard trails,go hiking ect,u burn fat n alot of times n aint peoples bodies burning out from lifting,its being in the gym everyday day in n day out, believe it or not we all hit a point in our lives where we just get aggitated from never taking days off from gym,mentally u start to feel like a slave to the gym and instead of enjoying going to the gym u hit a point where u feel like its a job n thats when u know u need 1 day off aweek or even 2,i was the same way in my younger days,i felt like i was shrinking on my days off, i felt guilty like i fucked a broad behind my wifes back or something, it got crazy. all im saying is do what makes u happy n if u dont feel mentally or phsically burned out i guess your ok, be careful tho cause if u r looking to make it for the long haul n keep doing these for the next 30yrs or so dont burn yourself out, sometimes to much motivation backfires n is almost as bad as not enough, theres was a point in my life back in the 90,s where i couldnt take a day off n it hurt me bad,mentally n phsically, dont look at a day off as something negative, just remember n remind yourself that nice, new and thick muscle fiber is growing in your body n u r getting stronger by that