SciShow
Why Does Getting Water Up Your Nose Hurt So Much?
Jumping into a refreshingly cold body of water on a hot summer day can feel wonderful, except for your nose. Why does it hurt so much when you get water up your nose?
TED-Ed
TED-ED: Why do we harvest horseshoe crab blood? - Elizabeth Cox
During the warmer months, especially at night during the full moon, horseshoe crabs emerge from the sea to spawn. Waiting for them are teams of lab workers, who capture the horseshoe crabs by the hundreds of thousands, take them to labs,...
SciShow
SARS-CoV-2 May Have Another Door Into Cells | SciShow News
Researchers think the virus behind COVID-19 may have multiple ways into cells—which could help us understand how it behaves.
SciShow
How The One-Shot COVID Vaccine Changes Things
The Johnson & Johnson COVID-19 vaccine is now the third approved for emergency use authorization in the United States, and it's a little different from its predecessors.
SciShow
Why Animals Keep Self-Amputating
Some lizards will lose a tail to avoid becoming a meal, but there's more than one reason for animals to self-amputate.
SciShow
A Cure for Ebola, Rabies, & Other Virus Villains?
Viruses are among humanity's greatest threats and it seems like they're always one step ahead of us. But this week, biologists say that they've discovered a new weapon we can use against some of our most nefarious virus enemies - and it...
SciShow
Why Athletes Are Worried About COVID: Its Toll on the Heart
We tend to think of COVID-19 as a lung infection, but there's more evidence that it might also be affecting the hearts of healthy athletes without them even knowing it.
TED Talks
David Heymann: What we do (and don't) know about the coronavirus
What happens if you get infected with the coronavirus? Who's most at risk? How can you protect yourself? Public health expert David Heymann, who led the global response to the SARS outbreak in 2003, shares the latest findings about...
MinuteEarth
How The Modern World Tricks Our Bodies Into Hurting Themselves
The same enzyme that used to save us is now killing us because the body reactions it catalyzes now cause more harm than good.
SciShow
REALLY Cold Cases Cracked by Science
The history books are full of mysteries, some of which we're just now getting around to solving.
SciShow
Why Are Honeybees Making Mummies?
Sure, honeybees make delicious honey. But have you ever heard of propolis, the spitty glue they use to mummify intruders?
SciShow
How to Make a COVID-19 Vaccine
One year to eighteen months might seem like a while to wait for a COVID-19 vaccine, but there's a good reason finding and approving a candidate takes a whole lot of time.
SciShow
Horseshoe Crabs Saved My Life
Horseshoe crabs aren't really crabs, but they are super old, super cool, and they deserve your respect. Because they may have already saved your life. SciShow explains!
SciShow
"Flesh-Eating" Bacteria
Hank gets straight to the facts in the unfortunate case of Aimee Copeland, who was injured during a zip-lining accident and subsequently contracted a rare disease.
TED Talks
Ludwick Marishane: A bath without water
If you had to walk a mile for a jug of water every day, as millions of people do, it's unlikely you'd use that precious water to bathe. Young entrepreneur Ludwick Marishane tells the amazing, funny story of how he invented a cheap, clean...
TED Talks
Yann Dall'Aglio: Love -- you're doing it wrong
In this delightful talk, philosopher Yann Dall'Aglio explores the universal search for tenderness and connection in a world that's ever more focused on the individual. As it turns out, it's easier than you think. A wise and witty...
SciShow
The Rarest Cancer in History (It's Also the Weirdest)
The medical industry has developed countless methods and tools for diagnosing the myriad of illnesses that can befall us. This, as you might guess, includes cancer. But it took a research team five months to diagnose this specific cancer...
MinuteEarth
Do Other Diseases Have "Long" Versions?
COVID isn’t the only virus to cause long-lasting symptoms. Other viruses - including the flu - can have similar enduring effects on our tissues and immune systems.
SciShow
COVID-19 Reinfections Are a Thing: Here’s What We Know So Far | SciShow News
Researchers believe you can get reinfected with COVID-19, but we're not quite sure if that's a bad thing yet.
SciShow
Bringing Back the Lost American Chestnut Tree
American chestnut trees were all over the US at the end of the 19th century until the fungus wiped most of them out. Scientists have been trying to figure out ways to bring those endangered American chestnuts back to their former glory.
SciShow
What's Killing the World's Amphibians
Of the more than 7,000 known species of amphibians in the world, an estimated one third are now threatened with extinction. Hank breaks down the science behind the decline of amphibians around the world, and what you can do to help.
TED-Ed
TED-ED: Mysteries of vernacular: Quarantine - Jessica Oreck and Rachael Teel
Stemming from the days of bubonic plague in Medieval Europe, quarantines were originally used to prevent potentially plague-infested ships from disembarking at a port city. Jessica Oreck and Rachael Teel explain how the length of the...
TED-Ed
TED-Ed: Why do you get a fever when you're sick? | Christian Moro
There are many mysteries around fever, but we do know that all mammals, some birds and even a few invertebrate and plant species feel fever's heat. It has persisted for over 600 million years of evolution. But it has a significant cost:...
SciShow
What Does an Asymptomatic COVID-19 Infection Look Like?
Some people who get sick with COVID-19 don't feel any symptoms of the disease, but what does an asymptomatic COVID-19 infection look like?