The Human Brain

Dreams combine verbal, visual and emotional stimuli into mystifying storylines. Should we bother to interpret them? Are they random brain impulses, or do they offer insight into our waking lives?

By Lee Ann Obringer & Yves Jeffcoat

The more you know about your memory, the better you'll understand how you can improve it. Get details on how your memory works and how aging affects your ability to remember.

By Richard C. Mohs

Your co-worker just yawned in a meeting, and now everyone on his side of the table is yawning, too. Learn about what might've caused him to do it in the first place and why you're likely to yawn right along with them.

By Melanie Radzicki McManus

Collective hysteria can spread when a fear exists of exposure to a disease, combined with a contained environment. Learn more about collective hysteria works.

By Jacob Silverman & Austin Henderson

You've been looking forward to your European vacation for months. But the first few days of your trip, you're grouchy, exhausted and brain dead. Is there some way to prevent or cure jet lag?

By Patrick J. Kiger

Once scientists discovered that some members of the great ape family could recognize their reflections in mirrors, academics began to wonder whether these animals were actually conscious of themselves. That debate continues today.

By Jessika Toothman & Sascha Bos

We'd like to think we're pretty clever, but when you correct for body mass, dolphin brains aren't far off from our own. What cognitive skills do dolphins possess, and could they really be our intellectual equals?

By Jessika Toothman

Computers can handle far more calculations per second than the human brain, and can store and retrieve information very reliably. Should we be jealous of these hunks of silicon and metal on our desks?

By Jonathan Strickland

Erosion and weather can combine to make rock formations look like all kinds of things, from human faces to animals. They're called mimetoliths and we've taken a look at four of the most famous.

By Michelle Konstantinovsky

Do we have a tendency to walk clockwise around the block? Why do sports favor counterclockwise rotation? Does it have anything to do with handedness or driving habits?

By Laurie L. Dove

An extensive study looks at personal space in 42 countries, and how weather affects preferences.

By Melanie Radzicki McManus

Although left-handed people were thought to be "sinister" or "unnatural" in previous eras, we now know that left-handedness is natural for 10 percent of the population. And it can have some advantages over right-handedness too.

By Alia Hoyt

A series of studies showed that including the word 'sorry' in a rejection actually made the rejected person feel worse.

By Alia Hoyt

We often think that if a drug has been studied by scientists and given a favorable outcome, then it must be safe and proven. But many kinds of biases can creep into a study, rendering it less than effective.

By Patrick J. Kiger

A new study shows that belief in perceiving patterns correlated strongly with belief in conspiracy theories and the supernatural.

By Alia Hoyt

The Bionic Reading app has exploded in popularity. But can it really make you a speed reader?

By Sharise Cunningham

We often throw around the word "insanity" for acts that seem to have no rational explanation (like a teacher giving an insanely difficult test). Legally speaking, though, it's actually a narrow term that's very difficult to prove in court.

By Chris Opfer

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

Odd as it may seem, many antidepressants like Zoloft having warning labels about increases in suicidal thoughts. Why would that be? And how will you know if your medication is actually working?

By Laurie L. Dove

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

Most of us don't intuitively classify electroshocks as therapeutic, but this 1950s-era treatment has changed a lot since it was first introduced. When and why do mental health experts now turn to it?

By Kate Kershner

The same characteristics that help turn songs into earworms also help our brains store important bits of information. Why does the human brain love mad rhymes?

By Laurie L. Dove

Having a Ph.D., four stars on your general's uniform or a seat in the Oval Office won't necessarily stop you from doing things that make others want to whack you on the head with a "how could you?" Here are 10 who should've thought twice.

By Becky Striepe

Newly minted parents do it. Night-shift workers do it. Men and women in the service do it, too. Could you trade a continuous stretch of sleep for a bunch of naps throughout the day, too?

By Danny Bonvissuto

Despite our best intentions, sometimes we just make bad choices. Is it possible to fight your own worst instincts? Only if you can spot these flaws in your decision making process.

By Tom Scheve