Is there any evidence for endlessly scrolling reddit can be bad for you?

I'll go out on a limb and say 12 hours of Reddit/YouTube per day is probably bad for you, yes

i've got annecdotal evidence. my adhd just gets worse when i use reddit. it's literally a website where your attention is on 1 post, then another, then another, then another, then another. all in the span of like 10 seconds. if that's not adhd provoking, idk what is.

on the flipside, if i read a book, or watch bob ross paint, or do a candle flame gazing meditation where i try to keep my eyes and mind locked and focus on the flame; all these things just practically cure my adhd, not permanently ofcourse, cuz if i start being a degenerate again it'll come back. but if i do the more chill and healthy activities it absolutely counteracts my adhd.

there's also all the evidence behind dopamine detoxes and how that's benificial. reddit is a dopaminergic activity. here's some neurobiology professor talking about it if ur interested.

also, at the end of the day, "bad" or "good" is subjective. what are your goals? if your goal is to find inspiration for ur artistic persuit and ur following a bunch of art subreddits. then maybe it's "good" for you. if your goal is to work out and your spending all your time mindlessly scrolling then it's "bad".

the way i think of it personally is like this. am I using reddit? or is reddit using me? cuz they're tryna make it a n addictive and enging website. am i engaged because of that? or is it engaing for me in the way i want it to be engaging where i'm learing a piece of knowledge or information that i was looking for and needed. i'll use youtube as an example. you can go on youtube and look up something in the search and aquire information on how to do pushups in proper form, and then go and do that. or find a tutorial on drawing the human form with proper anatomy to help with your art and then you practice it. but if you go on youtube just to see what random recommened video it might throw at you for the dopamine hit which doesn't actually effect your life, actions, or what you do in any way... then it's youtube that's using you. at least, that's how i see it, but u can ignore my view if u want since you've asked for evidence and just click the link from earlier to that neurobiology professor if you'd like. but really, i think it's entirely subjective what "good" or "bad" is, since for example DDOI is a youtube channel that shows interesting and fun videos, and the guy running it needs to find cool videos to show people. so it's literally his job to find funny memes and short clips and he gets paid to do it. and then he goes for a hike or whatever in his free time and doesn't let the job consume him, he only uploads like 3 vids a week i think. i think he would say that that's "good". but perhaps you aren't doing that and your goal is to get a degree or some shit, so perhaps it's "Bad"? idk, i think it's entirely dependant on your personal goals and your personal meaning/satisfaction/fulfilment in life.

In my personal experience, it depends on what subreddit you go to. There are some subreddits that can cause anxiety or depression due to subject matter. Then there are some like r/funny or r/nottheonion that are lighthearted and can be positive experience.

If you want to reduce Screentime you could get yourself an App which Limits Access to certain apps

This phenomenon is happening right now, it's part of our generation, so i don't think there are big long term studies about it. However my gut and my common sense tell me it is very bad. Is my opinion based on scientific facts? No. Because I don't think this is an experiment worth participating in. That being said, i fall victim to this behavior as well. The thing is that I am of the belief that it is really bad, so it's something i want to change, regardless of what any scientific paper might say. Sorry it might sound like a ramble, my point is that I think we don't always need scientific evidence for certain things.