Here’s the theory: humans have been endurance running for millennia and our bodies are designed for the task. Run barefoot and you’re most likely to strike the ground with your foot’s front or middle. Studies, chiefly by Harvard human evolutionary biology professor Daniel Lieberman, have shown these super-structured shoes actually counteract the body’s natural running style, encouraging runners to stride out and hit the heel instead of the forefoot. In a paper in Nature in 2010, Lieberman found that landing on the heel creates a collision-force of 1.5 to 3 times the body’s weight, which could contribute to stress fractures … Continue reading We were made to run barefoot