Trauma doesn't just affect the person who originally experienced it. It can also be passed down to their children and grandchildren.

When we think of how we respond to outbreaks, we often think of physical things like vaccines or medicines, but there is another factor that is just as critical to understand: culture! Culture determines how we collaborate and use the...

People say Einstein had an IQ of 160, and you need an IQ score higher than 130 to join Mensa. But does IQ really measure how intelligent you are?

The term "OCD" often gets thrown around lightly by people describing their affinity for neatness, but actual obsessive-compulsive disorder is a serious condition that goes well beyond just cleaning and counting.

Do Ray Bradbury, Arthur C. Clarke, Jules Verne, Philip K. Dick, Hugo Gernsback, Robert Heinlein, or Isaac Asimov hold a candle to H.G. Wells when it comes to correctly predicting the future of science via science fiction? And why does...

Shocking the brain has come and gone as a medical treatment, but it’s currently resurging, as it often provides the best form of relief for severe depression and advanced Parkinson’s disease. ___________________________________________...

There are about 450 million diabetics around the world, and while we do already have a reliable way of measuring blood sugar, it requires patients to prick their finger each time they want a reading. Is there a better way?

We don't want to deluge you with information on the subject, but this week on Crash Course Mythology, Mike Rugnetta is talking once again about floods. We're looking at ancient flood myths in the Americas, and what they can tell us about...

We reference the DSM pretty frequently on SciShow Psych, and for good reason: it’s considered the gold standard for professional mental health diagnosis in the United States, but it was an interesting journey to get there.

In this episode of Black American History, Clint Smith teaches you about the complicated history of racial tension in South Central Los Angeles. You'll learn about the Watts Rebellion of 1965, a 6-day uprising in response to police...

What will become of humanity after spend a few hundred years on Mars? What will happen after a few thousand? Evolution has, and still is, shaping humanity in rather drastic ways. How long will humans stop being human and become Martian?

Humans love to make perfumes and fragrances from the weirdest sources, And to protect those sources, we sometimes come up with synthetic alternatives....which then create their own sets of environmental problems.

Armed with a sense of humor and laypeople's terms, Nobel winner Murray Gell-Mann drops some knowledge on TEDsters about particle physics, asking questions like, Are elegant equations more likely to be right than inelegant ones?

At the heart of alchemy was the quest to turn ordinary metals into gold. Despite the hopelessness of that goal, alchemists still made a lot of discoveries that formed the foundation of modern chemistry and medicine.

This is a re-upload of a previous episode. Thanks to one of our astute viewers for pointing out the last episode was problematic, and thanks to all our viewers that help us think about the world more complexly!

Skin is one of the most powerful predictors of health, yet nearly half of all new dermatologists admit to feeling uncomfortable identifying health issues on darker skin tones -- resulting in poorer health outcomes for patients of color....

Fewer children in the United States are getting vaccinated. That's bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible,...

In which John Green teaches you about Sub-Saharan Africa! So, what exactly was going on there? It turns out, it was a lot of trade, converting to Islam, visits from Ibn Battuta, trade, beautiful women, trade, some impressive...

Decades after being made illegal in the United States, new research into LSD is showing that it may have a variety of medical uses!

English is a confusing language for many reasons. But the irregular verbs might be the most confusing part. Why is "told" the past tense of "tell" but "smold" isn't the past tense of "smell"? It turns out that the study of irregular...

In which John Green teaches you about the fall of the Roman Empire, which happened considerably later than you may have been told. While the Western Roman Empire fell to barbarians in 476 CE, the Byzantines in Constantinople continued...

In this episode of Crash Course Psychology, Hank takes a look at a few experiments that helped us understand how we develop as human beings. Things like attachment, separation anxiety, stranger anxiety, and morality are all...

Today, Clint will teach you about the Supreme Court confirmation hearing of Clarence Thomas. During the screening process, Anita Hill came forward alleging that Thomas had sexually harassed her when the two of them worked together at the...

Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one was—and is—tricky.



The brain sciences—with experiments and therapies tied to biological...