What is heavy water, and is it safe to drink? Heavy water, or deuterium oxide, has some pretty important scientific applications. But what would happen to your body if you actually drank it? Hosted by Hank Green.

We know modern day healthcare to be a world of expensive premiums, long wait times and frustrating hospital bills. However health care has existed long before insurance premiums and online portals! Curious about when healthcare for...

Is there actually a cure for cancer? A universal cure would be a truly historic achievement in medicine, and it seems that scientists may have found it... by accident. Watch this new episode of SciShow and find out more! Hosted by: Hank...

Researchers believe you can get reinfected with COVID-19, but we're not quite sure if that's a bad thing yet.

Plastics usually stop electricity in its tracks, but scientists have figured out a way to keep the electrons flowing. 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...

If you're not hearing impaired, you may wonder what it's like to wear a cochlear implant—what does it actually sound like? Unlike what you may think, cochlear implants don't generate sound like a hearing aid would. Instead, they actually...

The Five Stages of Grief show up in media everywhere from The Simpsons to Robot Chicken, but scientists have long been working on better ways to think about grief.

Did Thomas Edison invent the lightbulb? I mean... kind of... but also... no. Every great, world-changing invention is the culmination of efforts by dozens or hundreds of people, spanning decades or centuries.

There’s still a lot of work to be done before HIV is cured, but this week scientists reported the second-ever case of full HIV remission in a patient.

This week in the journal Nature Communications, scientists report a way to use fossilized shark teeth to figure out where different shark species, including megalodon, stood in the web of life. And last week in the journal Scientific...

Welcome back to SciShow Talk Show where Hank talks to interesting people about interesting things! In this episode Hank discusses corvids with John Marzluff of the University of Washington.

Set against the backdrop of the COVID-19 pandemic, the rise of vaping-related lung injury over the past few years has complicated things since it can cause an uncannily similar host of symptoms to COVID-19. So, let’s take a closer look...

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...

The hymen is a human structure that is surrounded by myths and misunderstandings. So today, we shed some light on what the hymen actually is, where it comes from, and why it can’t actually tell you anything about a person. Hosted by:...

Hank describes some scientific advances in the field of mind reading.

Unless you saw the spider bite you, that swollen, bite-looking lesion on your arm is probably something else, and blaming it on an innocent 8-legged critter might do more harm than good. Hosted by: Stefan Chin

You would think that almost everyone has the same exact number of bones in their body, but that number is different, and changing, in everyone!

Donating your blood could save someone's life. And so could donating your poop. Correction: The writer for this episode was actually Hannah Thomasy, who is wonderful.

Did you know that bananas are berries, but strawberries aren’t? A lot of thought goes into classifying fruits and vegetables, and it all has to do with anatomy.

Sometimes researchers make similar breakthroughs at similar times and that leads to great rivalries (think electricity). But what about the times that these researchers choose to collaborate? Hosted by: Hank Green (he/him)

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)

A new strain of bird flu has been detected in North American birds for the first time in seven years. And U.S. President Biden is temporarily lifting the country's summertime ban on E15 gasoline.

AI-generated media that looks and sounds exactly like the real world will soon permeate our lives. How should we prepare for it? AI developer Tom Graham discusses the extraordinary power of this rapidly advancing technology, demoing...