For at least the last 200,000 years, between 10-15% of the human population are left-handed and this fact has utterly left science baffled. In searching to explain handedness, all sorts of contradictory evidence has emerged, creating a fascinating mystery.
# Summary
This Stuff You Should Know episode dives deep into the fascinating science of handedness—why some people are left-handed, right-handed, or ambidextrous, and what that actually means for your brain and body. Josh and Chuck explore everything from the evolutionary history of hand preference in humans and our primate ancestors to the surprising connections between handedness and brain structure, plus some quirky advantages lefties might have in sports and processing information. They also touch on why left-handed people have been historically stigmatized across cultures and languages, and how forcing kids to write with their non-dominant hand can actually be harmful.
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