Is handedness genetic?

Handedness is strongly influenced by genetics. Andrew Huberman discussed this with Eddie Chang, explaining that there's clear evidence linking handedness to genetic factors, although it's not entirely genetic. The brain areas controlling hand movement are close to those responsible for the vocal tract, suggesting that these regions might develop together early in utero, leading to a genetic predisposition to being left or right-handed 1.

Additionally, the lateralization of brain functions, such as language and mood, can be linked to handedness. For instance, right and left-handed individuals often show different patterns of brain dominance, particularly related to language areas 2.