Too much time sitting down is harmful to your health

Not just a little harmful.  It is very harmful to spend more than a few hours doing nothing, especially if you do this every day.  You might think that a little exercise would erase this problem but it doesn't.  Although exercise in your life is always a good thing, it doesn't take away a lot of the damage that prolonged and frequent sitting can do.  It doesn't matter if you are playing video games, watching TV or using the computer (which I must address even though most of my time is work related).
Couch potatoes beware: Too much time spent watching TV is harmful to heart health