Why are 90% of people right-handed and 10% left-handed? A modification of the well-known fighting hypothesis aims to explain this pattern.

The story begins in France, in the summer of 1789, explains Patrice Higonnet, a professor emeritus of French history at Harvard University. As the French Revolution gained steam, an angry mob had just ...

Around the world, 10.6 percent of people are left-handed. Handedness is a form of so-called functional brain asymmetry: left-right differences in brain function. In left-handers, the right motor ...