SciShow
Do These 7 Supplements ACTUALLY Work?
New ReviewIn your travels on the Internet, you might've seen some strange names and even stranger claims about supplements. From ashwagandha to valerian root, l-lysine to vitamin D, here's just a few of the most hyped supplements and whether or...
SciShow
Do Redheads Feel Less Pain?
New ReviewYou may have heard that redheads need less pain medicine, or that they need more anesthesia in surgeries. And both of those things are true! Which is weird. Let's talk about some of the stuff we know about what the heck hair color has to...
TED-Ed
Yes, tiny mites live on your face — but is that a bad thing? | M. Alejandra Perotti
Two species of Demodex mites specifically inhabit human follicles. And not just some people’s— nearly everyone is thought to host mites. One person’s face might harbor hundreds or even thousands of individual mites. On any given day,...
MinuteEarth
The Time I Was a Human Incubator
Premature babies majorly benefit from skin-to-skin contact with a parent –also known as “kangaroo care”– because it reduces infections and hypothermia and increases weight gain and parental involvement.
TED-Ed
TED-Ed: How do heat waves affect your body? | Carolyn Beans
In many parts of the world heat waves are happening more often with greater intensity and for longer durations. By 2050, Earth’s mid-latitudes could be experiencing extreme heat between 90 and 180 days a year, with tropical regions...
SciShow
Injured? Maybe Antlers Could Help
Scientists have recently discovered the cells responsible for a deer's amazing ability to regrow antlers in just a few months. It may be the key to healing human wounds and broken bones faster.
SciShow
7 Ways Humans Change Color
We're all used to our bodies being more or less the color they always are. But there are a few different medical reason you may be seeing rainbow in the mirror, from benign to medically concerning. Here's just some of the reasons that...
SciShow
Did Dinosaurs Have Belly Buttons?
Belly buttons are, typically, a human's first scar. A sign that you used to feed through an umbilical cord that connected your tummy to a placenta. But it turns out you don't have to feed from a placenta to get a similar scar. It might...
MinuteEarth
Why These Bears “Waste” Food
Optimal foraging theory means that turning down food is sometimes more efficient than eating it - but even then, what’s “wasted” doesn’t necessarily go to waste.
SciShow Kids
Can You Guess These Fall Animals with Jessi and Sam? | SciShow Kids Compilation
Jessi and Sam face off to see who can figure out the clues and guess the right animal! ----------
SciShow Kids
Why Are These Frogs So Colorful? | SciShow Kids
Join Squeaks as he learns about some of the most colorful animals ever: poison dart frogs! Some animals are bright and colorful to warn other animals that they might be dangerous... and some are just copycats. First Grade Next Generation...
SciShow
This Probe Doesn’t Melt When it’s 1 Million Degrees Outside
In 2021, the Parker Solar Probe fulfilled its mission to “touch the Sun”. But the temperature over there was millions of degrees Celsius. How did the spacecraft not melt?
SciShow
Astronauts Need a Better Sunscreen
Space is a dangerous place. One of the many dangers comes in the form of radiation. On Earth, sunscreen helps shield our bodies. But astronauts on the ISS, or eventually on the Moon/Mars/etc., will have to be rocking some suped-up sunblock.
PBS
How Humans Lost Their Fur
We’re the only primate without a coat of thick fur. It turns out that this small change in our appearance has had huge consequences for our ability to regulate our body temperature, and ultimately, it helped shape the evolution of our...
PBS
Why sunscreen in the United States is behind the rest of the world
According to the Skin Cancer Foundation, everyone older than six months should use sunscreen every day to decrease the risk of skin cancer. But today’s sunblock is full of ingredients that are decades old and increasingly obsolete. Dr....
TED-Ed
TED-Ed: Do mosquitos actually bite some people more than others? | Maria Elena De Obaldia
Some swear they're cursed to be hunted by mosquitos while their close-by companions are regularly left unscathed. Are mosquitos really attracted to some people more than others? And if so, is there anything we can do about it? Maria...
TED-Ed
TED-Ed: The one thing stopping jellyfish from taking over | Mariela Pajuelo and Javier Antonio Quinones
Over the past two decades, jellyfish have begun to overwhelm our oceans. If things stay on their current trajectory, we could be headed for a future where the entire ocean is thick with jellyfish. So, is there anything that can keep...
TED Talks
TED: What's it like to be a giant sequoia tree? | Ersin Han Ersin
Artist Ersin Han Ersin invites us to step inside a giant sequoia tree, peering through the bark into the tapestry of life within. Discover how his multisensory installations explore the concept of "umwelt," or the unique sensory...
SciShow
Do Polar Bears Have Fiber Optic Fur?
Humans may use fiber optic technology to make everything from novelty desk toys to high speed internet cables, but Nature has its own ideas. For decades, scientists have debated to what extent polar bears may use the optical properties...
SciShow
Can Gray Hair Be Reversed?
Researchers have identified the processes that cause gray hair and have done experiments to reverse it. And believe it or not, we've had some of these options for decades.