Dopamine drives your motivation, fuels reward anticipation, and sharpens focus....

https://wiki-aero.win/index.php/Is_Night_Scrolling_Ruining_Your_Sleep_and_Killing_Your_Motivation%3F

Dopamine drives your motivation, fuels reward anticipation, and sharpens focus. Your sleep, stress, exercise, diet, and digital habits shape these pathways. Remember, dopamine is not a quick hack