Hi Marianne: There are a couple of possibilities in my head... One about the info overload. I, for one, am an information junkie ;-), so I can totally see where it can get out of hand. The onus is on me to learn ways to manage my tendency to believe "more is better" and to recognize when "this is enough" and/or "I can find this later, I don't need it now". The speed of processing is exactly what I think leads people to develop the new "reading habits" of skimming, reading highlights and bullet points, etc. to get the most information for the least effort. Adaptive, but not the way we want to digest all our information necessarily. And thus the need to exercise more than one kind of "circuitry" for how we do things. Two, the motion sickness problem. I am no expert on computer monitors, but my guess is that if one spends too much time in front of a monitor with its "flicker", then the brain and inner ear might start to get mixed signals of the type that produces motion sickness, i.e., the visual system says you are in motion while the kinesthetic system says no, we're not! Might be time to spend more time away from the monitor -- more breaks or longer breaks...?? I remember when playing Tetris (on older monitors, of course) was all the rage -- I could see tetris blocks whenever I closed my eyes!