Inside the Mind

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

Most people would recall every detail of being held up in a bank robbery but not so well the details of their last birthday party. The brain is wired for recalling trauma for a very good reason.

By Colleen Cancio

Aristotle defined hate as a dislike so intense that whoever feels it wants to cause another person real harm. What is going on in our brains when we hate? And can hate ever be a good thing?

By Patrick J. Kiger

There's a connection between our physical bodies and the way it responds to emotion -- but scientists aren't quite sure what it is. Could it be that happiness is little more than a series of neurochemical responses to the world around us?

By Josh Clark

You think you'd know what happiness was -- you've felt it before, right? Not quite. It turns out that the definition of happiness pretty much depends on who's defining it.

By Josh Clark

Studies seem to indicate that men are more likely to harbor violent tendencies than women. What factors do researchers use to come to these conclusions, and most importantly, is it true that men are more violent?

By Jonathan Strickland

Why do we help others, even if we know it will hurt us? As it turns out, the concepts of altruism and selfishness may be linked -- much more so than we thought.

By Josh Clark

Are looking for ways of raising your self-esteem? Check out what we have uncovered for elevating your self-esteem in this article.

By DiscoveryHealth.com writers

There's no doubt that humans are a violent species. The real question is: Why? Are some people wired differently than others? Is it a matter of survival? Or are we just taking our frustrations out on others in violent ways?

By Jonathan Strickland

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

It's already a scary world. Why do we seek to experience more fear?

By Jamie Allen

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

By Alia Hoyt

Think of goosebumps as 'skin orgasms' that are caused by unexpected and pleasant experiences. You know you get them when you're cold, but what is going on in our brains that triggers them?

By Jennifer Walker-Journey

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