Shut down early for restful shuteye

When I was a kid, one of the greatest things in the world was getting to watch My Show before I trotted off to bed. "The A-Team," "MacGyver," "ALF," and so on -- all were part of my nighttime ritual. These days, however, it seems that my last hours of the day are spent in front of a different screen: My computer.

Not good. At least, that's what the researchers say. According to a recent study, about one-third of people who claim to spend an average of two-and-a-half hours surfing the internet at night tend to have restless sleep.

Researchers speculate that this late-night excitement (that was the word they used -- which made me wonder just what kind of sites they were looking at) could potentially throw off sleep/wake cycles, leaving you feeling unrested and lethargic the following morning.