system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What are the differences between dopamine, serotonin, and endorphins?
gpt
Serotonin promotes long-term positive feelings, psychosis, and digestion. A lack of it causes depression and anxiety. An overdose can cause seizures and death.

Dopamine helps with seeking behavior, medium-term pleasure, and movement. A lack of it can cause catatonia, dementia, and a few other disorders.

Endorphins stands for something like endogenous heroin, so they’re primarily painkillers, though they can also promote short term calmness. They’re what most often modulates addictive behaviors.

In short, they can all make you happier, but they do it through different pathways, with different side-effects, and for different periods of time.