When they say that I can't watch all episodes in 24 hours

F*** SLEEP I DON'T NEED IT!

it is actually possible
not necessarily healthy

My dad did this with game of thrones, finished the first season and started The second in less than a day

Its about 15-18 hours depending on food breaks or intermission

I started at midnight and finished by 2pm (took an hour nap after episode 3)

Well, i hate to burst you bubble but you can't watch all Episodes of, lets say Game of Thrones, in 24 hours. GoT has 5 Seasons releases yet, each season has 10 episodes with about 50min each. Thats 2500min or ~42 hours.