Why Left-Handedness Is Captivating Scientists Worldwide

For most people, using the right hand to write, eat, throw, or perform everyday tasks feels completely natural.

But for roughly one in ten people, the left hand is dominant.

Left-handedness has existed throughout human history and appears across populations around the world. Yet despite being relatively common, scientists still don’t have a single, simple answer to the question: Why are some people left-handed?