Why 90% of people are right-handed: Scientists trace the answer back millions of years

https://timesofindia.indiatimes.com/photo/132558289.cms" style="margin-top: 3px; margin-right: 5px;" />New research suggests upright walking and brain growth shaped human right-handedness.

This evolutionary process began when hands were freed from locomotion duties.

As hominins evolved, right-hand preference grew stronger with increasing brain size.

Larger brains encouraged hemisphere specialization, making consistent hand use more common.

This explains why most humans favour their right hand over others.