I have been obsessed with exercise since 19. I exercise on a daily basis -- either running, using a stair master, an elliptical glider, or lifting weights.

My attitude has been adopted by a lot of entrepreneurs who are using a variety of exercise gear to integrate some workout into work. Among the things they're using are the Walkstation (a desk attached to a treadmill), standing stationary desks, and traditional exercise balls.

Yet The Wall Street Journal  reports some level of injury among people who sit on exercise balls at work or use the Walkstation. And the newspaper also noted that the quality of work a person does on a Walkstation suffers; emails are rife with misspellings, typos, etc.

So getting one of these things in your life could be a career hazard, even though it's potentially very helpful to your health!

The Wall Street Journal goes on to report the makers of the Walkstation are selling 50 times the amount of units they were 6 years ago.

But if you do decide to try something like what I'm talking about here, be careful you don't suddenly decide to do 8 hours of walking! If you've been very sedentary, you want to build up slowly.

A woman I work with at HLN does the standing thing. She's worked her way up doing an hour or two of standing. Over time, she's built up to a whole day. That's the way to do it.