Topic: health

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Save the salamanders, unsung heroes of the forest

In an effort to avoid a "salamandergeddon" in the United States, the extinction of entire species of salamanders and other amphibians by a fungal disease known as Bsal, the U.S. banned the import of more than 200 spec...

This is What Outer Space Does to Your Body

NASA astronaut, engineer, and former football player Leland Melvin explains how the human body changes when it leaves the confines of Planet Earth. Your body may become taller, your heart might get smaller and change ...

How Far Do Sneezes and Vomit Travel? – Gross Science

Let's enter the world of sneeze experiments and vomiting machines with Anna Rothschild as she explains just how far the tiny liquid particles from sneezes and vomit can travel... and it's farther than you think. 'Vomi...

Mimicking shark skin to combat superbugs – Think Like a Tree

In 2001, materials scientist Dr. Anthony Brennan observed that Galapagos Sharks are barnacle and algae-free due to the micro-topography of their skin. These diamond pattern nanoridges also make it difficult for bacter...

A surgical robot delicately stitches a grape back together

In 2011, there was news that a surgical robot could deftly peel a grape with multiple efficient pincers. Now, the da Vinci Surgical System has demonstrated modern surgical technology by delicately stitching a grape ba...

Fig. 1: How Much Sugar Are You Really Eating?

The average American eats 19.5 teaspoons (82 grams) of sugar every day... that's around 66 pounds of sugar every year for each person. How are we consuming that amount? From Fig. 1 by University of California, learn m...

Classic Sesame Street: Broken Wrist

Breaking an arm, a leg, or some part of the body can be super scary. Not only does it hurt, but you may not know what's going to happen next. We love this classic Sesame Street video because it helps explain what to e...

Wild Inside the National Zoo: Reptile Rejuvenation

In this episode of Wild Inside the National Zoo, Reptile Rejuvenation, we get to meet three kinds of cold-blooded creatures that are warmly cared for: Aldabra Tortoises, a Grand Cayman iguana, and a Komodo Dragon name...

TED Ed: The benefits of a good night’s sleep

Sleep to remember! Remember to sleep! This TED-Ed focuses on those of us who are studying for tests or staying up late for deadlines, but The Benefits of a Good Night's Sleep can also help younger kiddos understand wh...

What are those floaty things in your eye? – TED Ed

Have you ever seen something small and strangely transparent float into your field of vision? ...as if it's on your eyeball? No, you're not seeing things! And no, those are not microscopic bugs or bits of dust in ...

Wild Inside the National Zoo: Raising Red Panda Cubs Tink & Henry

This is the story of Tink and Henry, two of ten red panda babies that were born at the Smithsonian's National Zoo in 2014. Both cubs had early health problems, prompting zoo keepers to take immediate action: around th...

How do wounds heal & how do scars form?

What happens when we get cut and bleed? How does skin scab over and heal? And why does skin scar? These two new vocabulary-filled TED-Eds from Sarthak Sinha get deep under our skin to give us a better understanding of...

Brush Brush Brush by Of Montreal

Brush Brush Brush by Of Montreal, animated by Kangaroo Alliance for the season 2 “Teeth” episode of Yo Gabba Gabba.

NOVA PBS: Immunity and Vaccines Explained

Why do we get shots when visiting the doctor? How do vaccines work with our immune systems to keep us from getting sick? From NOVA PBS: Immunity and Vaccines Explained. Our bodies are bombarded by bacteria and ...

AsapSCIENCE: Paper Towel vs Hand Dryers

Washing your hands properly with soap and water successfully rids your hands of nearly all traces of bacteria. After the soap and water, drying your hands with a hand dryer is most efficient. You can help prevent ...

ScienceTake: How an Embryo Grows

From a single cell to a whole organism, how do animals grow into such diverse and complex creatures from their embryonic beginnings? What if we could follow and map a human's development from a single cell to the esti...

How to take a hyacinth macaw’s heartbeat

Listening to a hyacinth macaw's heartbeat has never been easier: Margaret, who lives at the National Aquarium in Baltimore, Maryland, has been trained to voluntarily let a veterinarian team give her an annual physical...

TED Ed: How does the heart pump blood?

"For most of history, humans had no idea what purpose the heart served... although everyone could feel their own heart beating, it wasn't always clear what each thump was achieving... Even in the 21st century, only a ...

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