This a stupid Вопрос but its never been answered.

Got this off of Wiki Answers:

Wikipedia says, "The basal ganglia portion of the brain becomes very active when a person plays video games and watches TV. And the body releases a chemical called dopamine. Ritalin (and cocaine) also works on the basal ganglia of the brain and increase dopamine. еще dopamine is released; the less neurotransmitter is available to do anything else. For that reason persons with illnesses related to dopamine unbalance like ADHD should the time spent on watching TV to a half-hour a day."
So that might answer your question. I'm too wired to read through it today, so I hope it helps!
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idk but why do Ты even want to know?

ya it really does thats why i mostly go outside

only if Ты see TV for a really long time или late nights

it does but only if Ты watch tv way to much Ты would have to watch tv for a night and a день for it to damage your brain