December 2008 in Science - December 30, 2008 (Tuesday)

December 30, 2008 (Tuesday)

• Religion may have evolved because it helps followers have more self-control. The trait is important for achieving long term goals, avoiding substance abuse and increased longevity. (Physorg)
• Exercise has been shown to improve memory by allowing glucose to be quickly absorbed by muscles. This improves the function of the dentate gyrus, a part of the hippocampus, which is involved in learning and memory. (SciAm)