Body

How sleepy you are may depend on a number of factors, including age and where in the world you live.

Smartphone Study Uncovers Why So Much of the World is Short on Sleep

Age, gender and nationality impact how much we sleep, and social pressures rob many of needed rest

Washing your hands will make them clean, but it may not get rid of the microbes that live there.

Your Skin’s Microbial Inhabitants Might Stick Around, Even If You Wash

This tiny ecosystem is surprisingly stable from months to years, study reveals

Scientists Use "The Moth Radio Hour" to Create Brain Atlas

Using a functional MRI, scientists created a visual dictionary to show how areas of the brain process language

Your Body Could One Day Be a Computer Display

Forget screen time—a new technology is all about skin time

A man with a mind-controlled prosthetic competes in a test run of October's Cybathlon in Switzerland.

Switzerland Will Host the First Cyborg Olympics

The “Cybathlon” will show what happens when humans and machines collaborate

What a Tiny Fish Can Tell Us About How Humans Stood Upright

What is the root of why our ancestors gained the power to walk on two feet and chimpanzees didn't?

Mini-organs grow around the tiny scaffolds (lower left). The magnified image (right) shows the hair-thin channels that serve as blood vessels.

How a Tiny, "Beating" Human Heart Was Created in a Lab

The device, filled with human heart cells, could dramatically reduce the time it takes to test new drugs and end testing on animals

Scientists used an an integrated tissue-organ printer, or ITOP, to create this ear.

Scientists Printed a Human Ear

The scientific breakthrough is more than a creepy experiment—one day, it could save lives

Michelangelo painted some of art history's greatest hands.

Michelangelo May Have Had Arthritis

Researchers used old portraits and letters to study the master's hands

Scientists reconfigured a magnetic resonance scanner to capture a woman and her baby.

Why I Captured This MRI of a Mother and Child

A venerable symbol of human love, as you've never seen it before

Future Cops May Track Down Criminals By Making Fingerprints Glow

One scientist's revenge could be the ultimate crime-fighting tool

Prosthetics Could Soon Have a Sense of Touch

A technology suprisingly inspired by Darth Vader

The sensors can be printed on temporary tattoo-like material, which sticks on the skin for a week.

Tiny, Tattoo-Like Wearables Could Monitor Your Health

University of Texas engineers devise a relatively inexpensive way to make disposable patches that track patients' vital signs

People Can’t Tell Which of Their Toes Is Being Touched

The piggy that stayed home and the piggy that got roast beef get mixed up the most

The More You Have to Pee, The Easier Lying May Be

Full bladders make for better fibs

How does skin heal? You'll never look at a scab the same way again.

Ask Smithsonian: How Does Skin Heal?

The skin is an organ system that is unique to each individual, so not everyone heals the same way

This Bionic Suit May Be the Future of Prosthetics

Inventor Scott Summit is personalizing medical devices through 3D printing

Can You Crack a Medical Mystery?

A startup called CrowdMed asks volunteer detectives to study cases of patients with symptoms that baffle doctors

Does Dieting Actually Make Your Stomach Shrink?

Not exactly, says science—stretchiness and psychology seem to play bigger roles than size in determining how much a person can eat

Soon, Your Doctor Could Print a Human Organ on Demand

At a laboratory in North Carolina, scientists are working furiously to create a future in which replacement organs come from a machine

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