For me, for whatever reason it motivates me, helps me focus on certain tasks, maybe because I am slightly ADD. My own inside joke, never diagnosed
It gets me into things like cleaning my garage, haha.
And, as I already mentioned, the creative aspect.
Of course I sleep like a baby at the end of the day/night, but as far as being lazy, nope, not me. It must be some sort of brain interaction, because I just get super energetic and creative and time flies by while lost in whatever I am doing. :-D
Not to mention the awareness factor, I am a pretty aware person to begin with, but, it also is great for the nature appreciation scene too. I get really, really, into my property, noticing all the trees, the light. I have always liked the way it effects my already super charged brain.
And, this might sound arrogant, oh well, but really, if one is a pretty sharp knife to begin with, the effect is not going to really be noticible. It is the dull knives that grow even duller, and this is true for any alcohol or drug issue. I am in no way advocating any sort of abuse, but, IMO, it is true, the bright ones remain bright and the dull ones get duller. lol