Typos.... "up to 11% deterioration in fine motor skills like mouse clicking, and dragging and dropping, as well in as cognitive functions like math-problem solving."
It's silly to walk on a treadmill or pedal a stationary bike while trying to work, but I highly recommend using a desk like this with a push-button motor that lets you move back and forth between sitting and standing. Here I am demonstrating it 2 years ago.
We liked it so much we bought a second one. Bought a second 27-inch iMac too.