Back to today’s briefing

Story perspectives

Genetics Unraveled: The Science Behind Left-Handedness

2/9/2025

50 11

Summary

Story summary

Approximately 10% of the population is left-handed, a trait significantly influenced by genetics. Recent research uncovers how both common and rare genetic variants, along with epigenetic factors, shape handedness. Notably, tubulins play a vital role in brain development, impacting axon growth and guidance—essential elements in unraveling the mystery of left-handedness.

1 of 1

Story summary

Approximately 10% of the population is left-handed, a trait significantly influenced by genetics. Recent research uncovers how both common and rare genetic variants, along with epigenetic factors, shape handedness. Notably, tubulins play a vital role in brain development, impacting axon growth and guidance—essential elements in unraveling the mystery of left-handedness.