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...

What if you couldn’t remember anything past 30 seconds? Let us introduce you to a man named Henry Molaison who was diagnosed with anterograde amnesia. He couldn’t form new memories.

Night blindness is real, and it can be caused by any number of things that affect the complicated mechanics of your vision.

Cocaine addiction is difficult to treat, but with the help of gene therapy, scientists are hoping to change that

Our immune systems aren't just critical to our physical health. It turns out they may play a big role in our mental health, as well. And learning more about how these two aspects of our health are interconnected can help us develop...

Today, artificial intelligence helps doctors diagnose patients, pilots fly commercial aircraft, and city planners predict traffic. These AIs are often self-taught, working off a simple set of instructions to create a unique array of...

It seems like the easiest way to avoid tiny parasites is to just slap on your animal’s tick or flea collar and hike into the woods worry-free. But you definitely shouldn’t.

Everyone experiences pain -- but why do some people react to the same painful stimulus in different ways? And what exactly is pain, anyway? Karen D. Davis walks you through your brain on pain, illuminating why the "pain experience"...

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

During World War I, scientists were trying to develop an antidote to the poisonous yellow cloud known as mustard gas. They discovered the gas was irrevocably damaging the bone marrow of affected soldiers. This gave the scientists an...

You might’ve heard people talking about how awesome psychotherapy can be, but is it actually effective?

We may be living IN a simulation (according to Elon Musk and many others), but that doesn't mean we don't need to perform simulations ourselves. Today, we're going to talk about good experimental design and how we can create controlled...

Gene therapy is really complicated both scientifically and ethically. But it also has the potential to do some amazing things - like treating life threatening diseases in babies before they are even born.

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When it comes to our blood-producing stem cells, biologists have learned that bigger is not better. And a study has taken a look at the accomplishments and obstacles of an in-progress attempt to restore a large belt of degraded land...

A quarter of all prescription drugs in the U.S. come from substances that are found only in plants. In this episode of SciShow, we take a look at four of these talented plants who make our lives better.

Almost everyone has a scar that tells a story, but have you ever wondered why exactly scars form in the first place?

Over the course of this series, we've seen that outbreak science is actually MANY sciences, including biology, epidemiology, sociology, and even economics! Because outbreak science is an interdisciplinary field, everyone has a role to...

We've harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven't found a solution for a disease that affects more than 14 million people and their families at any...

Ever wonder why we still haven't cured cancer? Join SciShow as we discuss what's wrong with that question and why it's so hard to find a cure.

Nearly 3,000 years ago, a Babylonian tablet described a curious illness called "miqtu" that caused symptoms ranging from facial twitching to full body convulsions. Today we know miqtu as seizures, and modern medicine has developed...

Forget your Hans Grubers, Lord Voldemorts, and Hannibal Lecters. It's time to meet some real supervillains. They're called retroviruses, and they actually change their host cell's DNA.

Psychologists have been using animals in therapy for a long time, but cats and dogs aren’t the only options. Hippotherapy, also known as equine therapy, uses horses in therapies for everything from cerebral palsy to PTSD.

Alcoholics Anonymous has long been a treatment for alcoholism, and many, many addiction experts and people in recovery swear by the 12 step process. But what does the research show? How does AA stack up against other treatments for...