NPR’s All Things Considered has published a short segment on barefoot running.  Here’s an eye opening quote from the story talking about heel strike running, “…it’s like someone hitting you on the heel with a hammer…”  Yeah, that’s what if feels like to me as well.

Study: Humans Were Born To Run Barefoot : NPR.

Conclusion: Barefoot running puts less stress on the body.

Check out the link for the video that shows the shockwave that travels up the leg when heel striking.