When you want something a lot, the chemical dopamine is released in the brain, Dopamine will make you try get that thing you want, in a smarter way. It also improves your jumping, running, six legged hopping etc. A cool way to see this in action, is to find a friend, and then both eat something, and then play a strategy game. The next day have your friend eat something but you don’t eat something and then play the strategy game. You should win, because you have dopamine, and you want food. Next is serotonin, which is what you feel when you get that thing that you want. It’s pretty much happiness. But the problem with it, is that it overrides the dopamine, so it makes you happy, but it also makes you less smart. An awesome herb to make you not lose that initial dopamine is rhodiola rosea. Its pretty much the best herb ever, and you should definitely look it up.