Is it normal that i sit on the computer for over 100 hours a week?

a chair would be easier on the ass , just saying

Sitting for long periods at a time isn't healthy. You need to get up and exercise. Go for nature walks, garden, rock climb, ride a bicycle, walk, etc. You need to do something else

My brother has the same problem. He plays computer games approximetly 100 hours a week, he eats at computer, he plays it in his bed, he plays video games on his phone, while in bed, before sleep, he takes his phone to play video games to toilet..
He is 22 and still have never goten a girlfriend!
No that is not normal! Please stop if you want to have real friends, girlfriend, social life, good grades at school (if you are a student). And he even has to wear glasses because of that.

100 hours is straight up 59.5% of a week's time, and you say that's a minimum value. Sleep requirements are usually between 1/3-1/6 of your time (for this calculation I'll just say 1/4), so that would be around 42 hours a week. Between sleep and sitting on the computer, that's 84.5% of your time, at a minimum.

Well, if you're working in front of your computer, that actually might make sense.

Do you not work?

... I'm on the computer a lot, but at least I get up, walk around, and even use it for music + running purposes...
GET SOME FRESH AIR! SMELL THE ROSES!

You can't have a normal life with so much time spent on the computer. You are more comfortable at home doing this than getting out and enjoying life and having real friends. Also this is so bad for your body, my husband can sit for days watching tv or playing playstation. He has no friends or family or any desire to do anything no connected with the tv. or games. His health is deteriorating and nothing I say will ever change him. I don't believe he will live much longer, he has aged so much just from the inactivity and heart disease and now Diabete, I guess this is just a comfort thing for him because he has done this all his life. Can't change now.

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Don't you have something better to do? You know. Like buying a chair??

That's way too much.

He works his fingers on the keyboard..