I still remember one evening in 1987, walking down a deserted hallway at night back in college: I noticed that I could hear the CRT computer monitors left on overnight, behind the closed doors of offices. My hearing is still fairly good, but I doubt I could repeat that feat now.<br><br>Well, look at the bright side, Tom. You still have it pretty good... just wait until your mid-40s, when your eyes lose their accommodation! I've found that to be a lot more annoying than any of the other age-related effects I've experienced so far. Even though it's a gradual loss, I found that I noticed it all of a sudden, one day when I realized I could no longer focus on features of a PCB that I was looking at.