why are more people right handed?

  • 1 Replies

0 Members and 1 Guest are viewing this topic.


Katrina Ziebarth

  • Guest
why are more people right handed?
« on: 12/06/2008 08:10:13 »
Katrina Ziebarth asked the Naked Scientists:

Why are more people right-handed?

What do you think?


Offline RD

  • Neilep Level Member
  • ******
  • 8185
    • View Profile
why are more people right handed?
« Reply #1 on: 13/06/2008 22:49:41 »
The significant majority of humans are right-handed. Many are also right-sided in general (that is, they prefer to use their right eye, right foot and right ear if forced to make a choice between the two). The reasons for this are not fully understood, but it is thought that because the left cerebral hemisphere of the brain controls the right side of the body, the right side is generally stronger; it is suggested that the left cerebral hemisphere is dominant over the right in most humans because in 90-92% of all humans the left hemisphere is the language hemisphere.

In societies where communication is important there will be an evolutionary bias for left-brained / right-handed individuals.