Be Smart
Why Do We Have to Sleep
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here's a look at how sleep works, why we're not getting enough sleep, what happens if you DON'T sleep, and an idea...
SciShow
Crabs, Cockroaches, and 3 Other Pollinators That Aren't Bees
Bees aren’t the only pollinators out there. Some of the other, more surprising pollinators aren't just unconventional, they give us unique examples of how the relationship between pollinators and plants evolved in the first place.
TED Talks
TED: Why medicine often has dangerous side effects for women | Alyson McGregor
You might not know this: Many of the medicines we take -- common drugs like Ambien and everyday aspirin -- were only ever tested on men. And the unknown side effects for women can be dangerous, even deadly. Alyson McGregor studies the...
Crash Course
Your Immune System: Natural Born Killer - Crash Course Biology
Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.
TED Talks
TED: The incredible cancer-detecting potential of photoacoustic imaging | Lei Li
Could we use the energy from light and sound to detect disease? TED Fellow Lei Li shares the exciting promise of photoacoustic imaging: an affordable, painless and accurate method of converting light into sound in order to create...
TED Talks
LADAMA: How music crosses cultures and empowers communities
Singing in Spanish, Portuguese and English, LADAMA brings a vibrant, energizing and utterly danceable musical set to the TED stage. In between performances of their songs "Night Traveler" and "Porro Maracatu," they discuss how...
SciShow Kids
What Is Squid Ink?
Our friend the Giant Squid inspired a SciShow Kids viewer to write us and ask, 'What is squid ink, and can you write with it?' Jessi has the answers!
SciShow
5 Ways to Use Your Body as a Charger
Devices that collect data about our bodies need power, but they also might need to be very small or even ingestible. To avoid including batteries in these cases, researchers are looking for ways to harvest energy from the body itself.
SciShow
5 Things Humans Got Really Wrong About Our Bodies
Throughout history, people have been trying to figure out how our bodies work and how to fix them when things go wrong. This has led to some ideas that, with the benefit of hindsight, seem very strange
SciShow
Are Antioxidants Actually Good for Anything?
There's evidence that antioxidant-rich diets have health benefits in humans, but the antioxidant chemicals and enzymes seem to be only part of the puzzle.
SciShow Kids
The Very Long Time of the Dinosaurs! | History of Life! | SciShow Kids
Dino stops by the Fort to learn all about dinosaurs with Jessi and Squeaks! Did you know that dinosaurs were on Earth for so long that not all dinosaurs lived at the same time?! 2nd Grade Next Generation Science Standards Science and...
TED Talks
TED: How NASA invented a ventilator for COVID-19 ... in 37 days | Dan Goods
Get the behind-the-scenes story from visual strategist Dan Goods about how a single question launched NASA's Jet Propulsion Lab into action at the beginning of the COVID-19 pandemic, propelling an unprecedented pivot from space-exploring...
SciShow Kids
Why Do We Blink?
Ever have a staring contest? Why is it so hard?! Jessi answers a question from a curious SciShow Kids viewer: Why do we blink?
TED-Ed
TED-Ed: How do blood transfusions work? | Bill Schutt
In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she...
MinuteEarth
Should We Grow Human Organs In Pigs?
An amazing new technology will let scientists grow new kidneys for patients using their own stem cells inside of pigs.
SciShow
3 Secrets About Ancient Earth, Hidden in Marine Fossils
Fossils can provide clues to the conditions that ancient species lived in, like what their environments felt like, how deep in the water some species lived, or even how long the Sun was out!
SciShow Kids
Why Do Dogs Pant?
When people run around on a hot summer day, their sweat can help them cool off! But dogs can't sweat, and they have big, furry coats! So what can they do to stay cool?!
TED Talks
TED: The magic of Khmer classical dance | Prumsodun Ok
For more than 1,000 years, Khmer dancers in Cambodia have been seen as living bridges between heaven and earth. In this graceful dance-talk hybrid, artist Prumsodun Ok -- founder of Cambodia's first all-male and gay-identified dance...
TED Talks
Meditations on the intersection of humanity and technology | Olivia Arthur
Documentary photographer Olivia Arthur has been exploring a new frontier: the evolution of the blurring line between humanity and technology. In this meditative talk, she shows her work documenting the remarkable ways humans have merged...
SciShow
Humanity's New Cousin & An Ancient Giant Virus
SciShow News shares two amazing things from the deep past that have been discovered: a new ancient human relative, and a 30,000-year-old giant virus.
SciShow
8 of the Worst Stinging Insects
Generally, humans try to avoid getting stung by insects. However, in the name of science, the betterment of humanity, and pure curiosity, there are brave people out there who willingly subject themselves to the business end of the most...
SciShow
Bivalves Could Be the New Lab Rats
Bivalves—animals like mussels, clams and oysters—might be a more familiar sight in a restaurant than a lab. But it turns out that studying them might help us learn more about our own health.
SciShow
8 Truths and Myths About the Full Moon
With so many claims about the moon’s influence over everything from menstrual cycles to rainfall, SciShow is here to set the record straight with these 8 truths and myths about our moon. CHAPTERS View all HUMANS GET LESS SLEEP 1:27...
TED Talks
Alice Dreger: Is anatomy destiny?
Alice Dreger works with people at the edge of anatomy, such as conjoined twins and intersexed people. In her observation, it's often a fuzzy line between male and female, among other anatomical distinctions. Which brings up a huge...