Runners, listen up: If your body is telling you that your pace feels a little too fast or a little too slow, it may be right. A new study, published online March 18 in the Journal of Human Evolution, shows that the efficiency of human running varies with speed and that each individual has an optimal pace at which he or she can cover the greatest distance with the least effort.
Unraveling the origins of agriculture in different regions around the globe has been a challenge for archeologists. Now researchers writing in the Proceedings of the National Academy of Sciences report finding evidence of early human experiments with grain cultivation in East Asia. They gathered this information from an unlikely sourceâdog and pig bones.
Using cell phones and playing video games may not be as harmful to children's academic performance as previously believed, according to new research by a team of Michigan State University scholars. In fact, cell phones had no effect on academic performance among a group of 12-year-olds, the researchers found in a three-year study published by the Conference Proceedings of the International Association for Development of the Information Society, or IADIS, in Barcelona, Spain.