"Dopamine was originally thought of as critical in the pleasure" systems of the brain. It was thought that dopamine makes you feel enjoyment and pleasure, thereby motivating you to seek out certain behaviors, such as food, sex, and drugs. But then research began to show that dopamine is also critical in causing seeking behavior. Dopamine causes you to want, desire, seek out, and search. It increases your general level of arousal and your goal-directed behavior. Dopamine makes you curious about ideas and fuels your searching for information."
I've also noticed that if I try listening to music and my brain is being very picky with my playlist, then I know that the day will probably be filled with apathy and anhedonia.[2]
How much do you think the instant gratification society that we're living in plays a role in this behavior? The internet has made food, sex, goods, etc so easy to get, which may cause issues with dopamine management that our ancestors didn't have.
[1] https://www.psychologytoday.com/us/blog/brain-wise/201802/th...
https://www.wired.com/2011/07/sapolsky-on-dopamine-not-about...