We all know we should exercise. The real question is when? If you're up before dawn to reach the office on time and ready to collapse when the sun goes down, here's one solution: Get your exercise at work.

Sure, there are days when you barely have time for a bathroom break, let alone 30 minutes of cardio. That's why we asked two fitness experts to share some mini-workouts to fit snugly into the workday.

Research suggests two or three 10-minute exercise sessions a day can build fitness and burn calories as effectively as three weekly 20- to 30-minute workouts. Best of all, you won't need to find gear or a shower - we won't even muss your suit. Read more.