Have you ever noticed how some people write, eat, or throw a ball with their left hand? Left-handed people make up only a small part of the world’s population, which makes them pretty special.

Many people think there are only two forms of handedness, but there are actually three: left-handedness, right-handedness, ...

We’ve all heard the whispers. Those southpaws among us supposedly have some kind of secret intellectual edge. From Leonardo da Vinci sketching with his left hand to Einstein supposedly jotting down ...