http://i.imgur.com/pnWrc.jpg http://i.imgur.com/pnWrc.jpg I use a walking desk for about 8 hours a day. I found that about 1.2mph is my sweet spot where it does

http://i.imgur.com/pnWrc.jpg http://i.imgur.com/pnWrc.jpg I use a walking desk for about 8 hours a day. I found that about 1.2mph is my sweet spot where it doesn't affect my productivity at all. Took me a few weeks to get used to walking all day, but now it's completely natural.