system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we get bored?
gpt
Dopamine, oxytocin, serotonin, GABA, and other neurochemicals. We get a boost of dopamine from novel and stimulating activities. Eventually, or body produces less of it for the same experiences repeated over and over again, so we no longer get the same satisfaction that we had before.

Basically, new experiences are exciting and fun because our brain makes chemical soup to reward us for trying new things. Eventually our brain quits giving us the same chemical soup and changes the ingredients, so we get bored. 

It's essentially drug withdrawal.