Getty Images stock
Didn't manage to finish your latest run without taking a breather? Don't be so hard on yourself. Walking during your run isn't cheating--it's actually your body's natural way of preserving energy.
In a new study out of Ohio State University, researchers asked college students to travel several hundred feet within different time constraints. When students were given ample time, they tended to walk. With tighter time limits, they ran. Finally, when students had moderate amounts of time, they rotated between running and walking. Very few of the students, the study found, chose a steady jog instead.