system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 If we know what chemicals make us happy and how, why cant we create a food or something that keeps us in a good mood permenantly without ruining our dopamine receptors?
gpt
We are only just scratching the surface in our understanding of how the brain works. We have seen that activating the dopamine and serotonin receptors tends to make people happy. But, there is an ocean-sized gap between that basic understanding and making a drug that will always make people happy with no side effects.

It's entirely possible that the human brain simply isn't capable of maintaining a permanently happy mood without long-term damage. It might be like trying to run a car at top-speed all the time and not expect the engine to break down.