Quote from NY0BScalper:
At the end of the day I can often be quite tired mentally. It's very engaging and stimulating, which consequentially takes a tole. I like to have a beer and lie down to watch TV and just "zone out" for about an hour after the market is over in order to recharge. I'm very young and I love this game more than anything. On a very active day in which I trade over a million shares I tend to find myself very exhausted at the day's end.
I've never traded 1 million shares before in a day, but I've had some 2-400k share days and those are the days where you leave the floor feeling like you really, really, worked hard.