Does anyone else have this problem? It doesn't happen when reading things on the internet, where I am actively typing, scrolling, sitting up straight, and moving my head about. I think it may also have to do with the fact that my computer screen is set to 800x600 so I have large, easy(ish) to read text, and that the computer offers a variety of moving shapes and colors. But nearly every time I start reading a book that takes even a little thought, my body gets very tired. It doesn't help that I'm legally blind, and therefore have weak eyes and have to read slowly and keep a book held very close to my face. It's always made it difficult to plow through essay and biographical books, and even monographs about artists where the books are filled with colorful pictures (thank god I got my Bachelors in fine art and didn't have much in the way of heavy reading). I still start getting very tired or sleepy after a while. I've been trying to study music theory for some time now, a less-than-exciting subject with a lot of mental concentration involved, and it's been tough. Anyone else have this issue?