This week the FDA approves the first ever blood test for diagnosing concussions, and a group of scientists develop a neural network that could save you a trip to the eye doctor.

A lot of people react to certain compounds found in skincare products, and scientists may have figured out why these pesky rashes happen and how to prevent them. Meanwhile, a pair of papers published last week show how AI can be trained...

No Judging: At one point you've probably put a finger in your ear and dug out some rather unsightly ear wax, but why does your body produce this yellowy substance in the first place?

In the comments of our episode debunking six popular home remedies, a lot of you asked us if there are any that do work. Well, here’s the answer!

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Today Hank is building on last week’s exploration of identity to focus on personal identity. Does it in reside in your body? Is it in the collective memories of your consciousness? There are, of course, strengths and weaknesses to both...

It's 1843, and a debate is raging about one of the most common killers of women: childbed fever— no one knows what causes it. One physician has observed patients with inflammation go on to develop childbed fever, and therefore believes...

Has your doctor ever asked you to stick out your tongue and say "ah"? They're probably checking out your tonsils! But what are your tonsils, and what do they do?

The pee you just flushed without thinking could be a great sample to know what is going on in your body!

What's the deal with that sharp pain in your side when you're trying to win that marathon? SciShow has the answers!

Studies have found that even some of the most well-known home remedies don’t work, and sometimes they do more harm than good. Chapters HONEY FOR ALLERGIES BUTTER ON THERMAL BURNS 2:15 VINEGAR FOR HEAD LICE 4:42 4 IPECAC FOR POISONING...

What if invisibility wasn't just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere...

For the longest time, doctors basically ignored the most basic and frustrating part of being sick -- pain. In this lyrical, informative talk, Latif Nasser tells the extraordinary story of wrestler and doctor John J. Bonica, who persuaded...

How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zaidan explains how rapid cell division is cancer's "strength" -- and also its weakness.

If you have had a UTI before, maybe you've tried some cranberry juice or cranberry pills to ease the symptoms. Your mom suggested it, or even your doctor prescribed it, so it should work, right? But do you really know why cranberries are...

Last week, the World Health Organization announced that a malaria vaccine has finally made it through all the regulatory hurdles and is being distributed in the country of Malawi. Learn how it works and why it’s taken so long to develop...

Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot...

Kristie Overstreet is on a mission to ensure that the transgender community gets their health care needs met. In this informative, myth-busting talk, she provides a primer for understanding gender identity and invites us to shift how we...

Hank and physiologist Jon Harrison discuss the question of insect size and major theories that attempt to explain why there is a limit to how large insects can get with current conditions on Earth.

In our final episode of Crash Course Sociology we are going to talk about what the health care system in the US looks like, the five A’s of health care accessibility, and a couple of contributing factors to the affordability of health...

Hydrogen Peroxide: It fizzes, it stings, but does it actually do you any good? Find out on this week's Quick Question!

If you're wearing contacts, you might want to take a look at this.

We may not be as deeply divided as we think -- at least when it comes to health, says Rebecca Onie. In a talk that cuts through the noise, Onie shares research that shows how, even across economic, political and racial divides, Americans...

The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...

Comics creator Sam Hester is part of a growing movement within health care: graphic medicine. In short, literally drawing attention to a patient's needs and goals with pictures to foster better and more accessible caretaking. Hester...