Heavy TV watching associated with smaller brain structures, study finds

This entire article smells like bullshit to me. One, it relies on self report of amount of TV watching and second, it implies that the correlation implies causation.

What if I’m not actively watching the TV and it’s more or less just background noise while I’m studying or working? Am I still an idiot then?

What about heavy YouTube watching? I’m usually learning how to do things.

Eh, it’s fine. Old people and kids are all watching stuff in the internet. TV is dead.

That’s better, right?