Life Science

From the smallest microbe to the largest mammal, Life Science explores the origins, evolution and expansion of life in all its forms. Explore a wide range of topics from biology to genetics and evolution.

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In theory, if you could create a stronger mosquito that's unable to spread malaria and release them into the wild, they would replace the mosquitoes that can spread the disease. But until recently, there has been a major glitch in this concept.

By Julia Layton

Like the one ring of power in Tolkien's fantasy trilogy, "Lord of the Rings," deoxyribonucleic acid (DNA) is the master molecule of every cell. From its structure to what it does, learn all about DNA.

By Craig Freudenrich, Ph.D.

Researchers at New York University's LeDoux Laboratory have successfully deleted a single, targeted fear memory using drug therapy in rats. Their results show that the removal of one memory from a rat's brain did not affect other memories there.

By Julia Layton

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Human beings have always found ways to ward off the effects of sleep deprivation. The newest wake-up pill has all of the benefits of caffeine and amphetamines with none of the down sides.

By Julia Layton

Medical examiners are attributing an increasing number of deaths while in police custody to a syndrome called excited delirium. The problem is, there's no proof this syndrome exists.

By Julia Layton

People with face blindness" can see facial features just fine; if they were looking at a face they could describe to you what it looks like. But they cannot retain a memory of it. In severe cases people don't even recognize their own face when they look in the mirror. Learn what face blindness is all about.

By Julia Layton

Could your impulse buying really not be your fault? New research is looking at how the physiology of our brains affects our financial life.

By Julia Layton

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The results of three recent studies show that an uncircumcised man is twice as likely to contract AIDS from an infected woman as is a circumcised one.

By Julia Layton

Scientific studies are showing that lefties are quicker and more adroit in some activities than their right-handed counterparts. How true is this idea?

By Julia Layton

Psychopaths can commit horrible crimes without feeling any guilt at all. A recent study of psychopathic brains may shed some light on what's going on -- or not going on -- in these people's heads.

By Julia Layton

Hereditary illnesses are passed down from parents to their children like gene traits, and children might inherit a disease even though their parents never suffered from its symptoms. Learn about hereditary illnesses.

By Alvin Eden & Elizabeth Eden

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To achieve stability despite quick eye movements, the eyes take before and after shots of an image and compare them. Now, scientists may have finally discovered how.

By Julia Layton

This week, a group of London-based scientists requested official permission to begin a three-year study involving stem cells derived from human-cow hybrids.

By Julia Layton

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

With an ever-increasing number of studies finding a direct connection between sleep deprivation and weight gain, it's difficult to deny the cause-and-effect relationship.

By Julia Layton

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Stress is just around every corner for most of us these days. Reducing it requires you to learn the various types of stress, their different causes and how to deal with them.

By Betty Burrows

In psychology, the study of brainwashing, often referred to as thought reform, falls into the sphere of "social influence." Is brainwashing a system that produces similar results across cultures and personality types?

By Julia Layton

Learn the physiological processes that trigger a coma, how an actual coma differs from television depictions and how often people awaken after months or even years of being in a coma.

By Stephanie Watson

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

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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

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

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

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

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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

Should we bother to interpret our dreams? Are these nighttime stories random brain impulses, or do they offer insight into our waking lives? Learn what's happening in your brain while you dream.

By Lee Ann Obringer