TED Talks
TED: Blindness isn't a tragic binary -- it's a rich spectrum | Andrew Leland
When does vision loss become blindness? Writer, audio producer and editor Andrew Leland explains how his gradual loss of vision revealed a paradoxical truth about blindness -- and shows why it might have implications for how all of us...
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.
SciShow
Your Bones Do More Than You Think
Bones, you probably have them and they're for more than holding your body upright.
SciShow
What are Scars?
Almost everyone has a scar that tells a story, but have you ever wondered why exactly scars form in the first place?
SciShow
What is Restless Leg Syndrome?
We all get a jittery after sitting still for too long. But some people experience an irresistible urge to move their legs, and it can seriously affect their daily lives.
SciShow
Human Experimentation: The Good, The Bad, & The Ugly
In the early days of the space race, agency researchers in Russia and at NASA really weren't sure all what would happen to an astronaut in space. They didn't know if a human mind could handle actually seeing Earth or what would happen to...
SciShow
Understanding COVID-19
This video was recorded on 12/8/2020. Hank and our content manager, Alexis, interviewed Dr. Howard Bauchner, the Editor in Chief of the JAMA network of medical journals. They discussed some of the surprising things that we've learned...
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. Hosted by: Hank...
SciShow
7 Science Illustrators You Should Know
Long before we had cameras scientists still needed visual documentation—enter the science illustrator!
SciShow
5 Robots You Can Hug
Developers are working to make softer, squishier robots that are flexible enough to maneuver in extreme environments, including inside the human body!
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda
SciShow
Why Do Women Live Longer Than Men?
Evidence strongly suggests that men have, on average, a shorter lifespan than women, but scientists aren't exactly sure why that is. Check out today's QQ to learn more about this mortality mystery.
SciShow
What's the Best Position for Pooping?
Everybody poops ... but is it possible that you're pooping all wrong? Learn the science behind the greatest debate of our time: squat vs. sit! Thanks to Patreon Patron Maia for asking this important question!
TED-Ed
TED-Ed: Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So,...
TED-Ed
TED-Ed: What is a poop transplant, and how does it work? | Kathryn M. Stephenson and David L. Suskind
1,700 years ago, Chinese alchemist Ge Hong was renowned for his soup that could cure diarrhea-stricken patients. It had a surprising secret ingredient: feces. While it might seem unwise to consume feces, exciting new research suggests...
TED-Ed
TED-Ed: Can you freeze your body and come back to life? | Shannon N. Tessier
In 1967, James Bedford had a plan to cheat death. He was the first person to be cryogenically frozen. This process promised to preserve his body until a theoretical future when humanity could cure any illness, and essentially, reverse...
TED-Ed
TED-Ed: What would happen if you lost your sense of touch? | Antonio Cataldo
We don't often think of touch as being a vital part of movement, but touch is one part of a network that oversees all the sensations arising from the surface and interior of our bodies. Touch, pain, temperature, and our spatial awareness...
TED-Ed
TED-Ed: When are you actually an adult? | Shannon Odell
Most countries recognize 18 as the start of adulthood by granting various freedoms and privileges. Yet there's no exact age or moment in development that we can point to as having reached full maturity. If there's no consensus on exactly...
TED-Ed
TED-Ed: How stretching actually changes your muscles | Malachy McHugh
An athlete is preparing for a game. They've put on their gear and done their warmup, and now it's time for one more routine — stretching. Typically, athletes stretch before physical activity to avoid injuries like strains and tears. But...
PBS
The Connection Between Cold Weather And Catching A Cold
New research suggests that cold weather may actually affect the human body's immune response, making us more susceptible to colds, flus and other upper respiratory infections. Dr. Benjamin Bleier, a sinus specialist at Mass Eye and Ear...
TED-Ed
TED-Ed: What is schizophrenia? - Anees Bahji
Schizophrenia was first identified more than a century ago, but we still don’t know its exact causes. It remains one of the most misunderstood and stigmatized illnesses today. So what do we actually know about its symptoms, causes, and...
TED-Ed
What causes migraines? | Marianne Schwarz
A throbbing, pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light, lingering fatigue, disrupted sleep. While an incapacitating headache is one of the most common symptoms, a migraine can include...
TED-Ed
Why do we have hair in such random places? | Nina G. Jablonski
We have lots in common with our closest primate relatives. But comparatively, humans seem a bit... underdressed. Instead of thick fur covering our bodies, many of us mainly have hair on top of our heads— and a few other places. So, how...
TED Talks
TED: The inaccurate link between body ideals and health | Nancy N. Chen
Global obesity rates are on the rise, but body shaming campaigns are doing more harm than good, says medical anthropologist Nancy N. Chen. Reflecting on how the cultural histories of body ideals have changed over time, she offers a new...