Ever wondered why about 90% of us are right-handed? It's a wild mix of evolution, brains, and ancient brawls. Let's dive in quick!
The Epic Combat Edge
Picture prehistoric showdowns: Our ancestors grabbed shields with their left hand to guard the heart (tilted left in the chest), swinging spears right-handed for killer strikes. Facing foes head-on, righties nailed the enemy's vulnerable left side more effectively. Boom—survival of the strongest hand! Ancient tools even show righty wear patterns backing this up.
Lefties' Sneaky Superpower
But left-handers haven't vanished—they thrive on surprise! In a righty-dominated world, their flipped moves baffle opponents, scoring wins in fights or sports like boxing. It's a "rarity advantage": Rare lefties shine, but if they outnumbered righties, the edge dulls.
It's not all fisticuffs—blame brain wiring too. The left hemisphere rules language and skills, favoring right-side control. Toss in genes (it's inherited, but messy) and stuff like culture or hormones. Even chimps lean right for tools, hinting at deep roots. So, right-handedness? Born from life-or-death perks.