Body

Hiroshi Nagashima and Hiromitsu Nakauchi aim to genetically engineer pigs that grow human organs.

Will Japanese Researchers Grow Human Organs Inside Pigs?

A controversial technique to develop body parts from stem cells may someday save countless lives, but will society allow it?

Electronics That Can Melt in Your Body Could Change the World of Medicine

John Rogers, a revolutionary materials scientist, is pushing the boundaries of the medical world

A mounting body of research shows that the circumstances and chronic stresses of poverty interrupt the development of the brain.

How Growing Up in Poverty May Affect a Child’s Developing Brain

A mounting body of research shows that the circumstances and chronic stresses of poverty interrupt the development of the brain

Compared to a control brain (top), neuroscientist James Fallon’s brain (bottom) shows significantly decreased activity in areas of the frontal lobe linked to empathy and morality—anatomical patterns that have been linked with psychopathic behavior.

The Neuroscientist Who Discovered He Was a Psychopath

While studying brain scans to search for patterns that correlated with psychopathic behavior, James Fallon found that his own brain fit the profile

Researchers have found neurological abnormalities that persist long after the symptoms of a concussion have faded away.

Four Months After a Concussion, Your Brain Still Looks Different Than Before

Researchers have found neurological abnormalities that persist long after the symptoms of a concussion have faded away

Simply by looking at geo-tagged tweets, an algorithm can track the spread of flu and predict which users are going to get sick.

Your Tweets Can Predict When You’ll Get the Flu

Simply by looking at geotagged tweets, an algorithm can track the spread of flu and predict which users are going to get sick

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Watch a Tick Burrowing Into Skin in Microscopic Detail

Their highly specialized biting technique allows ticks to pierce skin with tiny harpoons and suck blood for days at a time

Everyone has a unique “fingerprint” of oral bacteria species, and new research shows that it correlates with genetic and ethnic factors.

Your Ethnicity Determines the Species of Bacteria That Live in Your Mouth

Everyone has a unique "fingerprint" of oral bacteria species, and new research shows that, in isolation, it can be used to predict your ethnicity

Scientists have identified a milk protein called Tenascin C that binds to HIV (the virus is shown here in green) and prevents it from injecting its DNA into human immune system cells (shown in purple, with pseudopodia in pink).

Discovered: A Natural Protein in Breast Milk That Fights HIV

Scientists have identified a milk protein called Tenascin C that binds to HIV and prevents it from injecting its DNA into human cells

By altering levels of the naturally-occurring chemical kynurenic acid in the brain, scientists made marijuana’s active ingredient THC less pleasurable, leading monkeys to voluntarily consume 80 percent less of it.

Is This Chemical a Cure For Marijuana Addiction?

By altering levels of kynurenic acid in the brain, scientists made marijuana less pleasurable, leading monkeys to voluntarily consume 80 percent less of it

Research in mice shows that heavy drinking triggers cellular changes that interfere with bone formation.

Why Binge Drinking Makes You More Likely to Break Your Bones

Research in mice shows that heavy drinking triggers cellular changes that interfere with bone formation

President Barack Obama is left-handed, as well as at least six former presidents.

Why Are Some People Left-Handed?

Being a righty or a lefty could be linked to variations in a network of genes that influence right or left asymmetries in the body and brain

New research shows that a molecule in Szechuan peppers activates your cells’ touch receptors, making them feel like they’ve been vibrated rapidly.

Why Szechuan Peppers Make Your Lips Go Numb

Research shows that a molecule in the peppers activates your cells' touch receptors, making them feel like they've been rapidly vibrated

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This Next-Generation Bug Spray Could Make You Invisible to Mosquitoes

Researchers are analyzing chemicals naturally present on human skin that disrupt mosquitoes' ability to smell us

When the heart’s electrical system fails, death is imminent.

Why Does Cardiac Arrest Often Strike in the Morning?

Studies show that the amount of a specific molecule in human hearts fluctuates on a daily cycle, helping to explain the decades-old observation

A colorized microscopic image of a viral particle of the Ebola virus. The virus, which scientists believe originates in non-human primates, causes Ebola hemorrhagic fever, a deadly disease in humans, monkeys, gorillas and chimpanzees.

A Minimum of 320,000 Mammalian Viruses Await Discovery

If we invested just $1.4 billion, we could discover 85 percent of all mammalian viruses, potentially lessening the impact of the next emerging disease

Much like bats and dolphins, some people have developed the ability to analyze bouncing sound waves to generate a picture of their environment.

How Human Echolocation Allows People to See Without Using Their Eyes

Mimicking bats and dolphins, some people have developed the ability to analyze bouncing sound waves to generate a picture of their environment

About the only use modern humans have for their urine is in health screenings. But preindustrial workers built entire industries based on the scientific properties of pee.

From Gunpowder to Teeth Whitener: The Science Behind Historic Uses of Urine

Preindustrial workers built huge industries based on the liquid's cleaning power and corrosiveness--and the staler the pee, the better

New research with rats indicates that mental activity can continue for 30 seconds after the heart stops beating—perhaps explaining out-of-body experiences.

A Last-Second Surge of Brain Activity Could Explain Near-Death Experiences

Near-death sightings of light at the end of a tunnel may be related to the 30 seconds of activity in rats' brains after their hearts stop

Regular caffeine use alters your brain’s chemical makeup, leading to fatigue, headaches and nausea if you try to quit.

This Is How Your Brain Becomes Addicted to Caffeine

Regular ingestion of the drug alters your brain's chemical makeup, leading to fatigue, headaches and nausea if you try to quit

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