Are computer monitors REALLY bad for your eyes if used constantly?!

Yes they can be bad if you don't blink often or take a short break every once in a while. All you have to do is take about an hour away every once in a while to look around, something 20 feet away. Blink more frequently too, so your eyes won't become dry. Also, turn down the brightness of your computer screen lower so your eyes won't strain from the brightness. And if you're using a modern computer, not the ancient old ones, you should be fine.

I use the computer constantly as well, hours from day to night. But I have also caused other problems, such as dehydration and constipation (haha) from sitting so long without getting up. So I'm trying to improve on that as well.....