Well, that's a really good question.
I spend almost 10 hrs a day on the screen despite I don't have to work.
Almost most of the time I would be on social media wasting my time rather than using it to productive cases.
seriously you are not working in that 10 hours being in front of computer screed?
are your eyes are still not needed a glass?
Yes i'm long time on screen for online some work.
online work and forum posting = long time in our screens
I now control my gadget using and only spend some 3-4 hours since last week.