Inside the Mind

Alien hand syndrome sounds like something from a B-grade horror movie, but it's a real condition. You could be completely at the mercy of your own renegade hand -- it could keep your other hand from functioning, punch you or even choke you.

By Charles W. Bryant

Actually it doesn't. You may think you're skilled at "multitasking" but chances are you aren't working on two things at exactly the same time. What's really going on and why is multitasking not a good idea?

By Alia Hoyt

Researchers have shown that THC in marijuana alters the structure of the brains in older mice to be more like brains of younger mice. Could the same be true for humans?

By John Perritano

The Scandinavian countries tend to come out on top in the World Happiness Report. But the report doesn't actually ask participants if they're happy. When that question is included, the country rankings are quite different.

By Dave Roos

What do Donald Trump, Bob Dole and LeBron James have in common? A tendency to talk about themselves in the third person. But is it just egotism or is there a hidden benefit to saying your name rather than "I"?

By Dave Roos

Some kids have a lot of talent in music, art or math. Then there are those who are gifted beyond belief.

By Dave Roos

When you see someone yawning, even in a picture, chances are a yawning urge will come over you, too. But is this also true of sneezing, and if so, why?

By Laurie L. Dove

You're deep in dreamland when you hear an explosion so loud you wake up. But there's nothing outside or inside your house making the noise. What just happened?

By Sean Russell

A new study shows that IQ levels have been falling since 1975, reversing a 20th-century trend.

By Melanie Radzicki McManus

Ever walked from your kitchen to the living room to find your phone and then forgotten what you were looking for once you got there? Researchers think your brain is hard-wired to undergo precisely that process of forgetting.

By Nathan Chandler

Maybe. A study that wasn't even about kissing turned out to (sort of) give the answer.

By Michelle Konstantinovsky