Playing a game or watching a movie feels good — but at the same time, you're living someone elses' dreams. All this dopamine, all this adrenaline will feel so good and make you tired just enough to conveniently forget about your own.

what about reading books? either fiction or non fiction?

the distinguishing benefit of reading, particularly more challenging works (of any genre), is improved reading comprehension and likely improved written ability as well, skills that have immense value in day-to-day life. Arguably video games and movies don’t have the same trickle over benefits. That being said I have an immense respect for the value of film and I imagine video games have certain benefits as well.