I just impressed myself

So I went to get some water to drink and while I was standing there drinking, I glanced over at my jug of protein powder (I know, very exciting). While looking at it, I saw that it listed the amount of each essential amino acid that it contains. Prior to this week, I would have just glanced at it, though "ok, whatever...glad that means something to somebody," and given it no further thought. But, I actually know the structure of all of them and what they do now, as well as why those few are essential!!! Who would have guessed...actually learning a few things in med school!! :)