Medical scans can produce thousands of images for a single patient in seconds, but how do doctors know what's useful? Scientific visualization expert Anders Ynnerman shows us sophisticated new tools -- like virtual autopsies -- for...

It's no surprise that heart tissue and bone tissue have really different jobs. So why does it happen?

Join us for the SciShow Talk Show as Lindsey Doe sheds light on the female reproductive anatomy. Then Jessi from Animal Wonders joins the show to show off Wilbur the Western Hognose Snake.

Cha
pters

View...

Paul Andersen explains how cells duplicate through the process of cell division. Prokaryotic cells (like bacteria) duplicate through a process of binary fission. Eukaryotic cells (like you) duplicate body cells through mitosis and...

Brain damage is usually a bad thing, but sometimes the best option is actually to damage the brain in very specific ways.

Crocodiles have four-chambered hearts, just like we do! But, while our hearts do just fine with four valves, they have a slightly different approach…

From ripping your own appendages off to cockroach mind control, wasps go to great lengths to ensure the survival of their species.

A universal cure for cancer would be a truly historic achievement in medicine, and it seems that scientists may have found it... by accident.

People have a lot of ideas about how they can protect themselves from the sun’s ultraviolet radiation, but many of those ideas just don’t hold up, and some make things worse!

The human hand, with its multi-talented thumb, might be man's greatest tool. But did you know we can trace that thumb, and the hand and arm it's connected to, all the way back to a 375 million-year-old fish named Tiktaalik? This week I...

Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for you? To answer that question, Mary Poffenroth explains how sunscreens work and...

We love carbonated drinks, but they also get a bad rap. What does bubbly water do to our body? Is it really bad for us?

Wanda Diaz Merced studies the light emitted by gamma-ray bursts, the most energetic events in the universe. When she lost her sight and was left without a way to do her science, she had a revelatory insight: the light curves she could no...

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

Puberty is a wild time in human bodies, and so much goes on as they transform from a child to an adult. But it turns out, the whole process is controlled by a single protein - and it’s probably one you’ve never even heard of.

And now we return to blood vessels. In this episode, we start discussing what blood pressure is, how it can become "high", and what that means for our health. One of the more interesting points is that your body has ways of...

Avalanches can be powerful and dangerous, but not all of them are created equal, and not everything you've seen on TV is likely to actually set one off.

Over the course of her fearless career, extreme action specialist Elizabeth Streb has pushed the limits of the human body. She's jumped through broken glass, toppled from great heights and built gizmos to provide a boost along the way....

Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes? The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to detailed manual for building a person out of...

Our immune systems are generally pretty great, but sometimes they can turn on us. And for some reason, these autoimmune conditions mostly affect women.

Have you ever tried to write or color with both hands at the same time? It seems like it would save a ton of time, right? But for most people, one of their hands is way better at drawing or writing than the other!

Over 100,000 metric tons of caffeine are consumed around the world every year. That's equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven't had enough sleep - but it can...

How worried should you be when your urine isn't yellow, but instead it's green, red, or even black?

Have you ever heard that you become more powerful in life-or-death situations? There are a lot of anecdotes about super strength, but is it a real thing?