Hank is tired of zombies in popular culture, and while acknowledging that dead people are scary (especially if they start moving around), he brings us some information on prions - misfolded proteins that are responsible for destroying...

The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn't actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first...

Consider a bat that is infected with several deadly viruses, including ones that cause rabies, SARS, and Ebola. While this diagnosis would be lethal for other mammals, the winged wonder is totally unfazed, and may even spend the next 30...

There are some diseases, like Zika or malaria, that get a lot of media coverage. However, every year, millions of people are infected with diseases that are just as deadly that we never hear anything about.

What you don't know about your microbiome may kill you!!! ...or just give you diarrhea.

What killed George Washington? Turns out it was probably related to the bloodletting and other 18th-century medicine his doctors applied.

What really killed Mozart?

A new virus emerges and spreads like wildfire. In order to contain it, researchers must first collect data about who's been infected. Two main viral testing techniques are critical: one tells you if you have the virus and the other shows...

Every time you breathe, air travels down the trachea, through a series of channels, and then reaches little clusters of air sacs in the lungs. These tiny sacs facilitate a crucial exchange: allowing oxygen from the air we breathe into...

When it comes to sex things can be complicated, but for the three species we are looking at today, sex is really hard.

We've talked about some of the ways microgravity can negatively affect humans, but for bacteria, being in space might be quite beneficial!

Your body produces more than a liter of mucus every day, and when you're sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making you miserable? Katharina Ribbeck reveals the mysteries of this...

In 1928, scientist Alexander Fleming returned to his lab and found something unexpected: a colony of mold growing on a Petri dish he’d forgotten to place in his incubator. And around this colony of mold was a zone completely and...

In 1884, an unlucky patient who had a rapidly growing cancer in his neck came down with an unrelated bacterial skin infection. As he recovered from the infection, the cancer surprisingly began to recede. The infection had stimulated the...

Do you really need a daily shower to stay clean, or is it doing more harm than good? Some scientists have recommendations based on what we know about our skin , and what might be living on top of it.

There are a few animals that will instinctively lick their wounds when injured. SciShow Quick Questions explores the reasons why they do this, and why we sometimes have to stop them from doing it.

New ReviewDiscover the five most dangerous foodborne parasites, from sushi worms to brain-infecting tapeworms. Learn how they enter your body, the risks they pose, and simple steps to protect yourself while enjoying your meals safely.

Antibiotics are one of the greatest medical innovations ever, responsible for saving something like a gazillion lives. But today, we're worried about overusing them, and there are concerns that one day they won't really work anymore....

Is there a mother out there who doesn't warn their children that going out in the cold is going to make them sick? Have you heard that old chestnut about losing all of your body's heat through your head? Do you think drinking alcohol...

Human Papillomaviruses (HPV) are the cause of genital warts, and believed to lead to a number of cancers. But there's a vaccine for HPV that can prevent you from getting infected. This week, Rosianna sends in some questions about the...

We're very clearly in favor of vaccines here at Healthcare Triage, because they save a LOT of lives. It turns out, the measles vaccine was doing more than we previously thought. Getting infected with measles doesn't only make you sick,...

Thriving in more than 50 developing countries, mostly in Africa and Asia, trachoma is the leading cause of blindness in the world. It is at its worst in rural communities and women are its favourite victims. Trachoma is a bacterium that...

The Zika virus is spreading through the Americas and is suspected to be causing babies to be born with tiny heads (and less developed brains).

Where there’s sex, there’s the possibility for STIs. In this episode of Crash Course Sex Ed, we unpack the most common sexually transmitted infections and how to prevent and treat them. Turns out, sexual responsibility is a lot easier...