TED Talks
Kelly McGonigal: How to make stress your friend
Stress. It makes your heart pound, your breathing quicken and your forehead sweat. But while stress has been made into a public health enemy, new research suggests that stress may only be bad for you if you believe that to be the case....
SciShow
Why Is It So Hard to Remember Things Right Now?
If you feel like you’ve been more forgetful than normal recently, you’re definitely not alone. Your memory can have a lot to do with what's happening around you.
SciShow
Your Microbiome and Your Brain
We've talked about the trillions of microbes inside you before, but we're learning that these little creatures may have more influence than you thought!
SciShow
Can You Actually Die from a Broken Heart?
It turns out this common phrase might have more of a basis in truth than you thought!
SciShow
Where Does Love Come From
When it comes to love, we often talk about our hearts...but we should actually be talking about our brains!
Crash Course
Statics: Crash Course Physics
The Physics we're talking about today has saved your life! Whenever you walk across a bridge or lean on a building, Statics are at work. Statics is the study of objects when they're NOT accelerating. In this episode of Crash Course...
Crash Course
Digestive System, part 2: Crash Course A&P
Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot about how...
SciShow
5 Body Hacks for When You’re Sick
No matter how healthy you are, you likely end up feeling sick at least a few times a year. And we have many pharmaceutical options these days to help us feel better. But some non-pharmaceutical remedies are supported by science,...
Crash Course
Great Glands - Your Endocrine System: CrashCourse Biology
Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development & function.
Crash Course
Reaching Breaking Point: Materials, Stresses, & Toughness: Crash Course Engineering #18
Today we’re going to start thinking about materials that are used in engineering. We’ll look at mechanical properties of materials, stress-strain diagrams, elasticity and toughness, and describe other material properties like hardness,...
SciShow
The Chemistry of Addiction
Hank describes how our brains respond biochemically to various addictive substances and behaviors and where those responses have come from, evolutionarily speaking.
SciShow
How Do You Get Rid of a Canker Sore?
Do you suffer from canker sores? These little white balls of blinding pain can be annoying, but there is hope.
SciShow
Why Does Pet Therapy Work? (It’s Not Just Cute Dogs)
Many studies have shown that pets can relieve anxiety, stress, and provide comfort, but why pet therapy is effective has a lot more to do with us than our furry pals.
SciShow
Why Does My Voice Crack?
Have you experienced embarrassing voice cracking? Most people have, and there’s a lot of reasons why you might be affected. From illness, stress, and good old puberty.
Crash Course
Stress, Strain & Quicksand: Crash Course Engineering #12
Today we’re talking all about fluid mechanics! We’ll look at different scales that we work with as engineers, mass and energy transfers, the no-slip condition, stress and strain, Newton’s law of viscosity, Reynold’s number, and more!
SciShow
Why We Age - And How We Can Stop It
Hank hates death, so he helps us understand the process of aging, informs us of how scientists are studying ways to prevent it and brings us the exciting news of current research in longevity... for mice.
Bozeman Science
Catalysts
Paul Andersen explains how catalysts can speed up a reaction without being consumed in the reaction. Catalysts can lower the activation energy of reaction be stabilizing the transition state. They can also create new reaction pathways...
SciShow
Are Broken Bones Stronger After They Heal?
You might have heard that bones are stronger after they break, which sounds ridiculous, but for a short period of time, it might be true!
SciShow
Why Do You Get Hangry?
Hanger is the grumpiness you feel when you are hungry. We've all been there, but what's the science behind it?
TED Talks
TED: Could a drug prevent depression and PTSD? | Rebecca Brachman
The path to better medicine is paved with accidental yet revolutionary discoveries. In this well-told tale of how science happens, neuroscientist Rebecca Brachman shares news of a serendipitous breakthrough treatment that may prevent...
SciShow
Why We Respond to Disasters with Altruism
The idea that humans react to disasters by losing control and acting selfishly is all too prevalent, especially in movies and television. But recent studies on altruism may provide evidence that this isn’t always the case, and this...
SciShow
All This Noise Is KILLING Me!
The sounds we hear every day really do have effects on our health. Not just our ears, but our hearts and even our brains.
Crash Course
Alkanes - Crash Course Organic Chemistry
Alkanes are kind of the wallflowers of organic chemistry, but they still have important functions in the world around us. In this episode of Crash Course Organic Chemistry we’re building our knowledge of organic molecules by learning all...
Crash Course
The Nervous System - CrashCourse Biology
Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.