Dopamine does more than signal pleasure. It fuels your motivation, reward...

https://mill-wiki.win/index.php/Resistance_Training_vs._Cardio:_How_Movement_Rewires_Your_Brain

Dopamine does more than signal pleasure. It fuels your motivation, reward anticipation, and focus. You can support a healthier brain by managing sleep, stress, movement, nutrition, and screen time. Just keep in mind that dopamine is not a quick hack