For those with a fear of needles, edible vaccines seem like some distant utopian dream, but that dream may soon be a reality... for chickens.

Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?

If you've received a vaccine that's 95% effective, that does not mean you have a 5% chance of getting sick. That’s just not how the numbers are calculated. So let’s take a closer look at how it does work, why we can’t compare these...

We here at SciShow know of two things that can help you get through this flu season: a flu shot, and watching this video. Make sure you do both! Hosted by: Hank Green

New variants of SARS-CoV-2 have emerged throughout the COVID-19 pandemic, with the latest one being Omicron. We’re still trying to learn about its effects and what it means for the overall course of the pandemic, but here’s what we know...

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...

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...

Like a common cold or a cold sore, would it be possible to get a reinfection of COVID-19? Would we be able to build up long-term resistance to it?

Near the end of 2020, we got some puzzling but good news: COVID-19 fatality rates have been dropping. Here are a few factors that might help explain why we’re seeing this trend.

Multiple companies and organizations have announced early results about their COVID-19 vaccines. Here's what we know about Pfizer's.

If we’ve had vaccines for the polio virus for almost 70 years, why haven’t we been able to fully eradicate it from the globe? Hosted by: Hank Green (he/him)

Current treatments for depression and PTSD only suppress symptoms, if they work at all. What if we could prevent these diseases from developing altogether? Neuroscientist and TED Fellow Rebecca Brachman shares the story of her team's...

Fewer children in the United States are getting vaccinated. That's bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible,...

Modern medicine has made great strides when it comes to treating and preventing some of the worst diseases in history. But getting that medicine from labs to remote regions presents some interesting engineering challenges.

When a new pathogen emerges, our bodies and healthcare systems are left vulnerable. And when this pathogen causes the outbreak of a pandemic, there’s an urgent need for a vaccine to create widespread immunity with minimal loss of life....

When it comes to fighting COVID-19, scientists are throwing every bit of science we’ve got at it. A creative technique some researchers are looking into involves using gene therapy to fight this virus with… another virus!

Two of the vaccines we have for COVID-19 have the distinction of being the first mRNA vaccines to see widespread use in humans. But how do they work, and how are they different from the litany of immunizations you probably got as a kid?

Hank tells us about two interesting new studies that explore the brain and its interaction with drugs, investigating how cannabinoids can repress fear, and bringing forth a possible vaccine for cocaine addiction.

Hank brings us news from planets all around the solar system: Mars, Mercury, and even planet Earth have been in the news lately. A retraction from NASA about the Curiosity mission; the discovery of water and organic material in craters...

By studying population-level epidemiological trends, researchers have noticed that an old vaccine for tuberculosis may provide some protection against COVID-19.

Like a common cold or a cold sore, would it be possible to get a reinfection of COVID-19? Would we be able to build up long-term resistance to it?

Vaccines teach your immune system to recognize pathogens, but sometimes your body needs a bit of a reminder.

The malaria vaccine was invented more than a century ago -- yet each year, hundreds of thousands of people still die from the disease. How can we improve this vital vaccine? In this informative talk, immunologist and TED Fellow Faith...

A vaccination to protect against allergic asthma may be in sight, as scientists this week publish promising results in mice. Also, the California Condor is making a comeback, and its genome is looking great!