What are the advantages and disadvantages of a cycling desk? I just came across an article about a cycling desk (never knew that such a thing existed). This past year, I gave up a traditional desk for a standing desk and have been pretty happy with the results, but getting in some extra miles during the work day is very, very intriguing.

What are the advantages and disadvantages of a cycling desk, compared to a standing desk? (The increased activity of cycling over standing is obviously an advantage.) Would I be moving around too much to get work done, or is this a non-issue? What about the posture of sitting on a bike saddle all day? Can the movement of cycling be distracting? How does it compare to a standing desk with a treadmill? 

Does anyone have any experience with a cycling desk? And is it possible to be productive while cycling, or is that an unreasonable expectation?
The basic answer is that there are many studies that link exercise and brain function.  A standing desk will get you off your bum, but a treadmil or cycle desk will get your body moving enough to allow your brain to work better.  

There is an entire chapter in the book Brain Rules.  I have no personal experience with it, but that is the theory.