Left-handedness has long been misunderstood, especially in schools and factories designed for right-handed use. This cultural pressure led to fewer observed left-handers among older adults - which explains why early research mistakenly linked left-handedness with shorter lifespans.
Modern research paints a far more interesting picture: handedness is shaped by a mix of biology and environment, not destiny. Even creativity and performance differences have been proposed - though findings are mixed, and scientists continue to study what handedness might reveal about how our brains organize information.