President Donald Trump spoke to world leaders Thursday with significant purple bruising to his left hand, similar to previous bruising on his right hand that his physician wrote off as being caused by ...

Whether you're left, right or ambidextrous, "handedness" is part of our identity. But a lot of people don't realize that we have other biases too and they are not unique to humans. My colleagues and I ...

For the past year, Donald Trump has had a persistent bruise on the back of his right hand. It initially came and went, but now the bruise is almost always visible on the president’s hand (though he ...

Add Yahoo as a preferred source to see more of our stories on Google. About 10% of people in the world are left-handed. Lefties have to endure lots of little daily struggles righties might not think ...