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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Are redheads going extinct?

Some news organizations have reported that redheads will disappear by the year 2060. But this fiery breed isn't taking the news lying down, and there are rumors that blonds are on the way out, too.

Are we 10 years away from artificial life?

Some researchers on the quest for artificial life say they're only 10 years away from their goal. But could these artificial life forms turn into a science fiction nightmare?

How Plague Works

You may be familiar with the medieval "Black Plague," but did you know that bouts of plague still break out today? Find out what causes an outbreak, why plague still exists and how the plague has influenced history.

How Can Light Kill Viruses?

Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future.

Why do old couples look alike?

Many old couples tend to look like each other due to shared life experiences, according to a recent study. Learn more about why older couples look alike.

How can doctors use virtual reality to treat phobias?

Nothing beats watching a blockbuster on the big screen, but today's home theater systems do an impressive job bringing that experience into your home. In this article, we'll explain how the components of a home theater system re-create the sounds and

How Synesthesia Works

Kanye West says he says sees music in color. Other people can hear words that make them taste a particular flavor, or they actually feel another person's pain. Welcome to the world of the synesthete. It's a stimulating one.

Does anger lead to better decision making?

How should we feel about anger? Check out the results of a new study about how anger impacts decision making and analytical thinking.

How can someone stay awake for 11 days?

A man in Cornwall, England, went 11 consecutive days without a wink of sleep. Find out how he did it, why he did it and why you shouldn't give it a try.

Could gene therapy cure baldness?

Hair loss affects millions of Americans -- men, women and even children. That's why a recent gene therapy study from a research group at the University of Pennsylvania has many people excited.

How Human Memory Works

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.

What is collective hysteria?

In 2006, a mysterious illness began to affect girls at a Roman Catholic boarding school in Chalco, Mexico: collective hysteria. Learn about this psychological disorder and find out why it occurs.

Can genetically modified mosquitoes wipe out malaria?

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.

How DNA Works

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.

Can I take a drug to wipe out one particular memory?

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.

Is science phasing out sleep?

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.

Are people in police custody dying of excited delirium?

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.

Can face blindness explain why that person at work never says hi to me?

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.

Is my brain making me buy things I don't need?

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

Why would circumcision decrease a man's risk of contracting AIDS?

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.

Are left-handers quicker thinkers than righties?

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

Do criminal psychopaths enjoy other people's fear or just not notice it?

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.

How Hereditary Illnesses Work

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.

How does the brain create an uninterrupted view of the world?

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.

Why would scientists want to create a hybrid human-cow embryo?

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.