 And again, as you think about this, now here's something. I'm going to give you the why, and then I'm going to tell you the what. So I already set the stage with the question. But if you mess around with dopamine levels, so if you take a drug or you take a supplement to try to increase dopamine, what will almost always happen is you will deplete your serotonin levels. So think about this right quick. So the inverse is true also. If you mess around with serotonin, if you increase serotonin, you decrease dopamine.