Many people think there are only two forms of handedness, but there are actually three: left-handedness, right-handedness, ...

It is often said that left-handedness runs in families, and most lefties know one or more family members that are also left-handed. So is there any scientific data supporting these anecdotal reports?

For the first time, scientists have identified the genetic differences associated with left-handedness, a trait found in 10% of the human population. What's more, those genetic variants result in ...

BOCHUM, Germany — Left-handed people appear significantly more often among those with certain mental and neurodevelopmental disorders, according to groundbreaking research that analyzed data from over ...

Left-handed? Today is your day — International Left-Handers’ Day, that is — a day to celebrate the 10% who always feel they’re being elbowed out by the other 90%. While the body is remarkably ...

Researchers say they have found, for the first time, the genetic markers that influence whether someone is left-handed. They also found those people may have an advantage over right-handers when it ...

About 10% of the population is left-handed, but 40% of those with schizophrenia are, according to a new study. That suggests that handedness may be a window into biological markers that predict ...

We’ve all heard the whispers. Those southpaws among us supposedly have some kind of secret intellectual edge. From Leonardo da Vinci sketching with his left hand to Einstein supposedly jotting down ...