Swift and agile movements of the right hand show superior motor control on the left-side of the brain. It is vice versa for the left-hand. 97% right-handers process speech in the left side of the brain and are left brain dominant. 68% left-handers produce speech in the left side of the brain like right-handers. Few lefties and righties use their right brain for language.
What causes handedness?
Handedness is partly inherited. The X (female) chromosome contains a single gene that influences it. External factors such as learning, birth traumas and social pressure can affect which hand is dominant.
Advantage right
Left-handed individuals are more prone to allergies, learning disorders and other problems. Right-handed people live longer than left-handed. There is a shortage of old left-handed people. Left-handers are more prone to accident as they live in a right-hand dominated world.
Advantage left
The right hemisphere is superior at imagery and visual abilities. Many famous artists are lefties. Example: Leonardo da Vinci, Michelangelo, etc. Lefties are better at visualizing three-dimensional objects and more lefties are architects, artists, etc. Left-handers are also better at sports than right-handers.
What causes handedness?
Handedness is partly inherited. The X (female) chromosome contains a single gene that influences it. External factors such as learning, birth traumas and social pressure can affect which hand is dominant.
Advantage right
Left-handed individuals are more prone to allergies, learning disorders and other problems. Right-handed people live longer than left-handed. There is a shortage of old left-handed people. Left-handers are more prone to accident as they live in a right-hand dominated world.
Advantage left
The right hemisphere is superior at imagery and visual abilities. Many famous artists are lefties. Example: Leonardo da Vinci, Michelangelo, etc. Lefties are better at visualizing three-dimensional objects and more lefties are architects, artists, etc. Left-handers are also better at sports than right-handers.
