SciShow
Thalidomide: The Chemistry Mistake That Killed Thousands of Babies
On October 1, 1957, thalidomide was introduced as a new morning sickness cure. Everything seemed great until later the next year, when thousands of infants were born with severe birth defects.
SciShow
Your Bones Do More Than You Think
Bones, you probably have them and they're for more than holding your body upright.
SciShow Kids
Your Super Skeleton!
Maybe you’ve seen skeletons in museums, or in Halloween decorations, but do you know how powerful your skeleton really is? Learn some fun facts about your bones!
SciShow
The Deal with Protein
People like to say all kinds of things about protein – like, you need to eat lots of it to build muscle and lose weight. The truth is, the science of protein and how your body uses it is much more complicated than that.
TED Talks
Matt Walker: Sleep is your superpower
Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get...
SciShow Kids
All About Your Body! | Human Body Compilation
The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...
Crash Course
Biomaterials: Crash Course Engineering #24
We’ve talked about different materials engineers use to build things in the world, but there’s a special category of materials they turn to when building things to go inside our bodies. In this episode we’ll explore the world...
TED-Ed
TED-Ed: How does alcohol make you drunk?
Ethanol: this molecule, made of little more than a few carbon atoms, is responsible for drunkenness. Often simply referred to as alcohol, ethanol is the active ingredient in alcoholic beverages. So how exactly does it cause drunkenness,...
TED-Ed
TED-ED: The science of symmetry - Colm Kelleher
When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is _a transformation that leaves an object unchanged." Huh? Colm Kelleher unpacks this...
Crash Course
The New Anatomy: Crash Course History of Science
There’s a question to consider that’s pretty daunting: what is life? And to try to answer that question, three tools stand out as being especially useful: A book, some experiments, and the microscope! In this episode, Hank talks to us...
TED Talks
TED: How humanity doubled life expectancy in a century | Steven Johnson
Doubling human life expectancy in a century is our greatest achievement, says author Steven Johnson. How did we make it happen -- and can we keep it going? Backed by fascinating historical anecdotes, he shares some life-lengthening...
TED Talks
TED: 3 ways community creates a healthy life | Olivia Affuso
Maintaining a healthy weight takes more than diet and exercise, says physical activity epidemiologist Olivia Affuso. In this actionable talk, she shows how you can kickstart a healthy life by tapping into the collective power of a...
TED Talks
Alexander Tsiaras: Conception to birth -- visualized
Image-maker Alexander Tsiaras shares a powerful medical visualization, showing human development from conception to birth and beyond. (Some graphic images.)
SciShow
Retroviruses: Microbial Supervillains
Forget your Hans Grubers, Lord Voldemorts, and Hannibal Lecters. It's time to meet some real supervillains. They're called retroviruses, and they actually change their host cell's DNA.
TED-Ed
TED-Ed: Why is pneumonia so dangerous? | Eve Gaus and Vanessa Ruiz
Every time you breathe, air travels down the trachea, through a series of channels, and then reaches little clusters of air sacs in the lungs. These tiny sacs facilitate a crucial exchange: allowing oxygen from the air we breathe into...
Crash Course
How Do Outbreaks Start? Pathogens and Immunology - Crash Course Outbreak Science
You may not realize it, but your body is like a fortress, designed to defend you from tiny foreign invaders known as pathogens. This seemingly small world is actually super diverse, and sometimes super dangerous too. That’s why in this...
TED-Ed
TED-Ed: Is marijuana bad for your brain? | Anees Bahji
In 1970, marijuana was classified as a schedule 1 drug in the United States: the strictest designation possible, meaning it was completely illegal and had no recognized medical uses. Today, marijuana's therapeutic benefits are widely...
TED Talks
Suchitra Krishnan-Sarin: What you should know about vaping and e-cigarettes
E-cigarettes and vapes have exploded in popularity in the last decade, especially among youth and young adults -- from 2011 to 2015, e-cigarette use among high school students in the US increased by 900 percent. Biobehavioral scientist...
Crash Course
What Is Outbreak Science? Crash Course Outbreak Science
Infectious disease has affected the human species for as long as we’ve existed, but in that time we’ve come a long way in understanding what they are and how they spread. In this episode of Crash Course Outbreak Science, we’ll introduce...
Bozeman Science
The Brain
In this video Paul Andersen explains the structures and functions of seventeen major parts of the brain. He begins with a quick discussion of brain evolution and ends with a review of the major parts presented inside the brainstem,...
SciShow Kids
How Do Our Bodies Move?
A SciShow Kids viewer wants to know: How Do Our Bodies Move? Jessi explains, while Squeaks works out!
TED-Ed
TED-Ed: How fast is the speed of thought? | Seena Mathew
Your mortal enemy has captured you and hooked you up to a bizarre experiment. He's extended your nervous system with one very long neuron to a target about 70 meters away. At some point, he's going to fire an arrow. If you can then think...
TED-Ed
TED-Ed: Sajan Saini: How light technology is changing medicine
It's an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and attaches a glowing plastic clip to our finger. Suddenly, a digital screen reads out the oxygen level in our...
Bedtime History
The Genius of Leonardo da Vinci
New ReviewLeonardo da Vinci was a painter, inventor, scientist, and dreamer from long ago. He painted the famous Mona Lisa and filled notebooks with sketches of flying machines and ideas far ahead of his time. Come explore the amazing mind of...