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?

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

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 ...

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 ...

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 ...

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 ...

Aside from their philanthropy, popularity and all-around inspiration, they're also all left-handed. So if you're a lefty, give yourself a round of applause. Friday, Aug. 13, is a great day to be a ...

Christmas wouldn’t be Christmas without an exchange of gifts among my two grandmothers, mother, and aunt, featuring the trait they shared: all four were left-handed. Waiting for them under the tree in ...

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 ...