Its only been alluded to, a time or too, but never explicitly stated (unless I missed it). But, sleep. Getting >=7 (preferably 8+) hours is paramount. (Also,

Its only been alluded to, a time or too, but never explicitly stated (unless I missed it). But, sleep. Getting >=7 (preferably 8+) hours is paramount. (Also, just about everything else listed in this thread).