SciShow
Why Does Sugar Make My Teeth Hurt?
Picture this: you're gorging on leftover Halloween candy. You take a bite of a fun-size chocolate bar and instead of sugary goodness, you get a flash of blinding pain in your tooth! What's the deal?
TED Talks
TED: Why I'm a weekday vegetarian | Graham Hill
We all know the arguments that being vegetarian is better for the environment and for the animals -- but in a carnivorous culture, it can be hard to make the change. Graham Hill has a powerful, pragmatic suggestion: Be a weekday veg.
TED Talks
Alex Tabarrok: How ideas trump crises
The "dismal science" truly shines in this optimistic talk, as economist Alex Tabarrok argues free trade and globalization are shaping our once-divided world into a community of idea-sharing more healthy, happy and prosperous than...
TED-Ed
TED-ED: The strange case of the cyclops sheep - Tien Nguyen
In the 1950s, a group of ranchers in Idaho were baffled when their sheep gave birth to lambs with only one eye. Mystified by these cyclops sheep, they called in scientists from the U.S. Department of Agriculture to investigate. What...
SciShow
High-Fructose Corn Syrup: The "Dark Lord" of Nutrition
Hank takes on high fructose corn syrup - the new "dark lord of nutrition" - to help explain the ambiguities around all the claims being made about it.
TED Talks
TED: Why genetic research must be more diverse | Keolu Fox
Ninety-six percent of genome studies are based on people of european descent. The rest of the world is virtually unrepresented -- and this is dangerous, says geneticist and TED Fellow Keolu Fox, because we react to drugs differently...
SciShow
6 Dangerous Diseases Hiding in U.S. Backyards
Microbes are all around us, on everything we touch, drink, or eat. While most microbes can't hurt us, you don't have to go much farther than your own backyard to find some that really can! Chapters PLAGUE 0:39 TULAREMIA 4:48...
TED Talks
TED: Why you should love gross science | Anna Rothschild
What can we learn from the slimy, smelly side of life? In this playful talk, science journalist Anna Rothschild shows us the hidden wisdom of "gross stuff" and explains why avoiding the creepy underbelly of nature, medicine and...
TED Talks
TED: Special Olympics let me be myself -- a champion | Matthew Williams
How much do you know about intellectual disabilities? Special Olympics champion and ambassador Matthew Williams is proof that athletic competition and the camaraderie it fosters can transform lives, both on and off the field. Together...
TED Talks
Geoff Mulgan: Post-crash, investing in a better world
As we reboot the world's economy, Geoff Mulgan poses a question: Instead of sending bailout money to doomed old industries, why not use stimulus funds to bootstrap some new, socially responsible companies -- and make the world a little...
TED-Ed
TED-ED: Cannibalism in the animal kingdom - Bill Schutt
Until recently, scientists thought cannibalism was a rare response to starvation or other extreme stress. Well-known cannibals like the praying mantis and black widow were considered bizarre exceptions. But now, we know they more or less...
TED Talks
TED: How digital DNA could help you make better health choices | Jun Wang
What if you could know exactly how food or medication would impact your health -- before you put it in your body? Genomics researcher Jun Wang is working to develop digital doppelgangers for real people; they start with genetic code, but...
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
SciShow
Hank Meets a Giant Squid and Other News
Hank is back in the studio and is very excited to be able again to share news of the universe with you, including his encounter with a giant squid, an English king discovered under a parking lot, new pyramids discovered in Africa, and...
Be Smart
Why Don't Other Animals Wear Glasses?
Vision impairment is common in humans, so why not the rest of the animal kingdom?
TED-Ed
TED-Ed: Why does your voice change as you get older? - Shaylin A. Schundler
The human voice is capable of incredible variety and range. As we age, our bodies undergo two major changes which explore that range. So how exactly does our voice box work, and what causes these shifts in speech? Shaylin A. Schundler...
SciShow
The Science of Men
Learn about the history of dudes, and a new theory about deep voices in this new episode of SciShow News. You know, science... bro... stuff.
TED Talks
Fatima AlZahra'a Alatraktchi: To detect diseases earlier, let's speak bacteria's secret language
Bacteria "talk" to each other, sending chemical information to coordinate attacks. What if we could listen to what they were saying? Nanophysicist Fatima AlZahra'a Alatraktchi invented a tool to spy on bacterial chatter and translate...
TED-Ed
TED-Ed: What does the liver do? - Emma Bryce
There's a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It's your liver: the heaviest organ in your body, which simultaneously acts as a storehouse, a manufacturing hub, and a processing plant. Emma...
TED Talks
Mark Kendall: Demo: A needle-free vaccine patch that's safer and way cheaper
One hundred sixty years after the invention of the needle and syringe, we're still using them to deliver vaccines; it's time to evolve. Biomedical engineer Mark Kendall demos the Nanopatch, a one-centimeter-by-one-centimeter square...
TED Talks
David Bolinsky: Visualizing the wonder of a living cell
Medical animator David Bolinsky presents 3 minutes of stunning animation that show the bustling life inside a cell.
TED-Ed
TED-Ed: How your digestive system works - Emma Bryce
Constantly churning inside of you, the digestive system performs a daily marvel: it transforms your food into the vital nutrients that sustain your body and ensure your survival. Emma Bryce traces food's nine-meter-long, 40-hour journey...
TED-Ed
TED-ED: Secrets of the X chromosome - Robin Ball
The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other...
TED-Ed
TED-Ed: What's that ringing in your ears? | Marc Fagelson
Tinnitus has been bothering humanity since Ancient Babylon, plaguing everyone from Leonardo da Vinci to Charles Darwin. Today, roughly one in seven people worldwide experiences this auditory sensation. So what exactly is tinnitus, and...