Left-Handedness, Neurodiversity, and Neurodivergence

Key points

A new secondary meta-analysis focused on left-handedness and its association with various conditions.

Autism, ADHD, and dyslexia were linked to an increase in left-handedness.

Left-handedness seems to be more common in neurodiverse and neurodivergent people than the general population.

About 10.6 percent of people are left-handed and the rest right-handed. One question that is not well understood is whether left-handedness is more common in neurodiverse and neurodivergent people than in the general population.

Neurodiversity and neurodivergence are two related terms that describe people who perceive their brains as being “different” from a “typical” human brain (whatever that may be). It is not a medical diagnosis, but more a self-imposed label people identify with. As suc