Life Science

You yearn to peer out the window of an SUV and watch a Tyrannosaurus rex lumber into a clearing. Your home movie of said event would be a YouTube sensation. Could it ever happen?

By Robert Lamb

Depending on whom and when you ask, everything from same-sex smooching to punk music portends the end of Western civilization. Do any of these cultural commentators have a case?

By Robert Lamb

A new global report says 1 million species are at risk of extinction - the greatest number in human history.

By Jonathan Strickland

Happiness is a wonderful thing. Unfortunately, it can also be elusive due to stress or depression. However, strategies abound that you can use to trick yourself into being happy. Ready for 10 of them?

By Josh Clark & Jessika Toothman

Sometimes you meet someone who smiles at you and exchanges pleasantries, but you still walk away feeling certain that you don't like him or her. You're not nuts -- you might be picking up on microexpressions.

By Tom Scheve

We need food for sustenance and nutrition, but we also eat for pleasure. We like the way some things taste, and enjoy the experience of eating, but can food actually make us happy?

By Josh Clark

Clowns might seem to have more foes than friends, but these entertainers are a key part of laughter therapy in hospitals. There is increasing evidence that a few hearty chuckles can help you along the road to recovery.

By Molly Edmonds

Traditional psychology has proven effective in studying and treating mental illness. However, some in the field want to study what makes patients happy instead of what makes them miserable.

By Josh Clark

Exercise, hot peppers, sex: All of these things are said to give you an endorphin rush. What's the science behind this chemical high -- and how do you keep it going?

By Tom Scheve

E=mc2. The theory of relativity. An understanding of the speed of light. These ideas all came from the brain of one man: Albert Einstein. But what happened to his brain after he died?

By Molly Edmonds

It's safe to say that no one particularly wants an ice pick through the eye socket. And yet, for years, people who were mentally ill or merely "difficult" had parts of their brains removed this way. The natural question: Why?

By Shanna Freeman

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

What does it take to be considered a genius? Were the Mozarts and Monets of the world born with it? Or did their environment shape who they became?

By Elizabeth Sprouse

When the traffic lights are functioning, drivers (usually) behave. Break a light, and everything comes to a standstill. Within our bodies, we could liken that broken traffic light to a DNA mutation - one that has the potential to mess up our body's everyday operations.

By Elizabeth Sprouse & Desiree Bowie

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

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

The journal "Nature" recently published a paper describing how a cell transplant had allowed blind mice to see again. What does this mean for humans?

By Tracy V. Wilson

Alcoholism can be difficult to spot. Learn the difference between heavy drinking and alcoholism, how alcohol affects the body, what factors may lead to alcoholism and what treatments are available for this addiction.

By Stephanie Watson

What exactly is fear? In this article, we'll examine the psychological and physical properties of fear, find out what causes a fear response and look at some ways you can defeat it.

By Julia Layton

Twins are unique people who are also eerily similar to each other. Do twins really have ESP? Learn how twinning happens and what types of twins are out there.

By Katherine Neer

Poison ivy is often very difficult to spot. But if you come into contact with it, you'll soon know by the itchy, blistery rash that forms on your skin. Learn how poison ivy causes that rash, and how to get rid of it.

By Stephanie Wilson

If you've kept up with the news lately, you've probably heard dire warnings about avian flu, or bird flu. In this article, we'll review the basics of how viruses and influenza work, and we'll learn the answers to these and other questions about avian flu, including whether it is likely to cause a global flu epidemic.

By Tracy V. Wilson

While most flu sufferers moan and groan for about a week and then return to work, the flu season creates more than just discomfort and a costly loss of work days.

By Stephanie Watson

We hear about them on the news and we listen to politicians argue for and against them using them to treat disease. Learn all about stem cells and the research, challenges and controversy that surround them.

By Stephanie Watson & Craig Freudenrich, Ph.D.

Dozens of people are frozen in cryogenic storage facilities, waiting to be revived when science is able to cure whatever killed them. But if they're dead, is revival from a frozen state even possible? Find out.

By Stephanie Watson