How and why do humans run comfortably without modern running shoes? This is a good question, and it is a question that is under investigation by the talented folks at the Skeletal Biology Lab at Harvard University. The collaborators here include Daniel E. Lieberman, Madhusudhan Venkadesan, Adam I. Daoud, and William A. Werbel. Much of their research looks into the world of foot strikes. Specifically, this refers to the area where the foot lands when running in barefeet (or minimal footwear) as compared to when using modern running shoes. First time visitors should check out the "Why consider foot strike" section, which also contains a video and an annotated explanation of this research. Moving on, the "Foot Strikes & Running Shoes" area provides some information on how modern running shoes tend to create a heel strike among most runners. The "Biomechanics & Videos" area offers some information on why different foot strikes matter along with some helpful instructional videos. The site is rounded out by the "Running Barefoot & Training Tips" area. Here visitors can learn about some basic training tips and the potential disadvantages of running without footwear.