When we think parasites, we often think of illness, disease, and discomfort. But did you know some of them can actually be helpful? Join Stefan Chin and learn all about them in a fun SciShow compilation all about the world of parasites!

You Can "Catch" Alzheimer's Disease

Have you ever thought you felt your phone vibrate, only to pull it out of your pocket and find that you have no new notifications? If so, you've experienced 'phantom vibration syndrome.' But what causes these mystery sensations, and are...

Chimpanzees and bonobos may be very close to us humans on the tree of life, but one of our differences is the way we store fat. That difference comes down to types of fat cells and our DNA. Hosted by: Hank Green

About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.

Neurotechnology, or devices that let you track your own brain activity, could help you deeply understand your health. But without privacy protections, your innermost thoughts, emotions and desires could be at risk of exploitation, says...

Imagine opening a bag of chips, only to find Santa Claus looking back at you. Or turning a corner to see a building smiling at you. Humans see faces in all kinds of mundane objects, but these faces aren't real— they're illusions due to a...

The U.S. government found child labor violations involving over 3,800 minors in 2022. At the same time, some states say there is too much regulation of child labor. Katherine Walts, director of the Center for the Human Rights of Children...

Jessi and Squeaks decide to answer some interesting questions from viewers like you, to teach you about sand, butterflies, and computers!

Earlier Signs of Concussion Effects in NFL Players' Brains - Concussions and other frequent head injuries have grown as a major health concern for professional football players. Jeffrey Brown reports on a new, preliminary study that...

Health correspondent Betty Ann Bowser talks to author Dr. David Kessler about overeating and what is behind people's cravings, the subject of his new book, "The End of Overeating."

Neuroscientist and pediatrician Kimberly Noble is leading the Baby's First Years study: the first-ever randomized study of how family income changes children's cognitive, emotional and brain development. She and a team of economists and...

In this episode of Crash Course Psychology, we get to meet the brain. Hank talks us through the Central Nervous System, the ancestral structures of the brain, the limbic system, and new structures of the brain. Plus, what does...

When you think about an eating disorder, you might imagine restricting or purging food. But the most common eating disorder has nothing to do with either of those, and chances are you’ve never heard of it.

A throbbing, pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light, lingering fatigue, disrupted sleep. While an incapacitating headache is one of the most common symptoms, a migraine can include...

You have a lot of choices if you’re looking to learn a new language, from Spanish to coding, or even whistling! And there are some broad similarities and patterns in the ways our brains process these different forms of communication.

Some of humanity’s favorite antibiotics are starting to lose their mojo, in the face of smart, sneaky, and rapidly-evolving bacteria. To find new drugs to combat these superbugs, scientists are looking in some weird new places, like...

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...

We all struggle with clutter, but something quite distinct might be happening in the brains of those who have the hoarding disorder.

Scientists have found some effective alternative treatments for patients with treatment-resistant depression, but they are not exactly sure why these treatments work.

You may have heard about a study where researchers were able to grow lumps of neural tissue that showed measurable activity – a little bit like an actual brain. Are scientists trying to grow artificial brains, and if so, what kind of...

Computers can beat us in board games, transcribe speech, and instantly identify almost any object. But will future robots go further by learning to figure out what we're feeling? Kostas Karpouzis imagines a future where machines and the...

You don't actually have a "reptilian brain" somewhere deep in your head making you act like a salty crocodile, so where did that idea even come from?

Placebos can alleviate all sorts of symptoms, but there's debate about their usage from an ethical standpoint. Of course, a doctor can't tell a patient they're taking placebos or they won't work anymore... or will they?