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...

Genetic tests can give you advice about what lifestyle, diet, and level of exercise are best for you. But you should take those suggestions with a grain of salt, because, when it comes to our bodies, our genes aren’t so much an open...

Some plants and flowers can be beautiful, but also extremely deadly. Join SciShow's Michael Aranda for a look into the top 10 deadliest plants, and find out just how toxic they are to humans and animals. ----------

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.

There are naturally occurring toxins on Earth that are SO poisonous that one drop could kill thousands of people. How is that possible? What about their chemical makeup makes them so poisonous? Join Hank Green for an exciting look into...

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.

Unlike with many other viruses, once you get a herpesvirus you’re stuck with it for life. But just how do these master trespassers accomplish this feat?

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)

Lawyers are advocates for their clients -- and, in court, they're usually the ones who do the talking. Should that always be the case? In an effort to shift this power dynamic, TED Fellow and legal aid activist Lam Ho shares how lawyers...

Scientists know that genetic factors can explain many of autism’s features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non...

In 1955, the Supreme Court ruled unanimously that public schools should be racially integrated, and overturned the separate but equal doctrine established in Plessy v Ferguson decades before. This was made possible by a concerted legal...

A new drug reduces the risk of heart attacks by 40%. Shark attacks are up by a factor of two. Drinking a liter of soda per day doubles your chance of developing cancer. These are all examples of a common way risk is presented in news...

From outbreaks of measles in the United States and cholera in Haiti to patterns of lead poisoning near gold mines in Nigeria, medical geographers play an important role in tracking disease in the landscape. Today, we're going to look at...

The medical test paradox: Can redesigning Bayes rule help?

This week Craig Benzine talks about what happens when a case makes it to the Supreme Court of the United States (or the SCOTUS). We're going to focus on court procedure today. We talk about how to petition to get your case heard, how...

Genetic tests can give you advice about what lifestyle, diet, and level of exercise are best for you. But you should take those suggestions with a grain of salt, because, when it comes to our bodies, our genes aren’t so much an open...

Our body is supposed to be paralyzed during REM sleep, but REM sleep behavior disorder might not allow you to stay in bed. It could even cause you to act out your dreams in real life.

We don’t know what causes non-hereditary Parkinson's disease, but researchers have recently identified a gene that might help shed some light on those cases. And another paper suggests that the impact we're having on the frequency of...

Volcanoes can show nature's rage. What are the biggest eruptions we've witnessed in our history?

Radiation sickness been portrayed in movies and television for more than 50 years. And those portrayals vary a lot. But if there’s one thing pretty much all these portrayals have in common, it’s that they get radiation sickness wrong—at...

Did you know that some species take care of young that are not their own? This surprising practice is called alloparenting, and it’s been observed in animals from otters, like Rosa and Selka, to birds to baboons!

Imagine a police lineup where ten witnesses are asked to identify a bank robber they glimpsed fleeing the scene. If six of them pick the same person, there's a good chance that's the culprit. And if all ten do, you might think the case...

Mandatory lockdowns, quarantines and shelter-in-place orders meant to contain COVID-19 have created a shadow pandemic of domestic abuse, says physician Kemi DaSilva-Ibru. Sharing alarming statistics on the rise of gender-based violence...

It doesn’t make much sense when we try to hide our good deeds, even though we know that we would get rewards from doing something good. Scientists are trying to solve this our bizarre behavior by using game theory.