As humans, we often forget that one of the most important things that differentiate us from other species is the complexity of our nervous system. The way our brain interacts through nerves to bring about actions and reactions, whether externally or internally, is often taken for granted. But the truth is, when it comes to how our nervous system works, there's a lot going on that we should be aware of.
And most important amongst them are neurotransmitters, the small molecules release fr...