I went to the doctor recenly and learned a rather interesting lesson about social media.

When the scale reflected the fact that I had GAINED and not LOST some weight, my doctor wanted to know what kind of activities I was involved in. I told her I was spending a lot of time on my computer these days. Sometimes I spend more than half of my day between Twitter and Facebook.

Not good, according to my doctor. She says spending hours at a time at a computer can create havoc on the body. In addition to the middle age spread, one might also develop knee, back and vision problems.

Another point she made was the stress factor. If you're looking to your computer as a means of financial support, you may find yourself with many frustrating days---especially if money is slow to come your way. That frustration, she says, can lead to high blood pressure and depending on heavily involved you are, it could also lead to something more serious.

So while many folks are busy singing the benefits of social media, a least one health expert--my trusted physician--says social media, just like alcohol, should be used in moderation.