And the benefits are staggering. You’ll burn an extra 150 calories or so per hour. Most people say that they’re significantly more alert during the day, and they sleep much better at night. So I jumped in. I elected not to buy a $5,000 unit (there are a couple out there), and building one myself seemed like too much trouble. Instead I bought a “TrekDesk” on Amazon and a cheap treadmill. I’ve been walking at 1.5 mph for 7-8 hours a day on average over the last few weeks. Some days I’m logging over 15 miles walking.