SciShow
Why Do We Need Yearly Flu Shots, but Not Measles Shots?
Unlike measles, Influenza requires a fresh shot of vaccines every year. But why?
TED-Ed
TED-Ed: How does anesthesia work? - Steven Zheng
When under anesthesia, you can't move, form memories, or -- hopefully -- feel pain. And while it might just seem like you are asleep for that time, you actually aren't. What's going on? Steven Zheng explains what we know about the...
SciShow
The Unexpected Connection Between Estrogen and Autism | SciShow News
There's a lot we don't understand about autism spectrum disorder, but this week scientists announced that they may have found a link between the disorder and elevated hormone levels.
SciShow
The Sweet and Lowdown on Sweeteners
From sucrose to high fructose corn syrup to... lead? Hank gives us the sweet and lowdown on sweeteners.
SciShow
Blood Scrubbing Nano Magnets
SciShow explains a new breakthrough in our battle against pathogens: nano magnets that clean the blood! Chapters View all MAGNETS! 0:01 MAGNETIC NANOBEADS 1:15 IT WORKS! 1:58
TED-Ed
TED-Ed: Why are human bodies asymmetrical? - Leo Q. Wan
Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped leaf or a butterfly with intricate patterns mirrored on each wing. But it turns out that asymmetry is pretty important, too - and more common...
SciShow
Could Your Blood Type Ever Change?
From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?
TED Talks
TED: You may be accidentally investing in cigarette companies | Bronwyn King
Tobacco causes more than seven million deaths every year -- and many of us are far more complicit in the problem than we realize. In a bold talk, oncologist Dr. Bronwyn King tells the story of how she uncovered the deep ties between the...
SciShow
3 Big Discoveries Made by the International Space Station
We all know it's awesome, and we could watch Chris Hadfield sing all day, but do you know about the awesome science that's being done on the International Space Station? Hank explains three big discoveries made on the ISS that you should...
TED-Ed
TED-ED: How do scars form? - Sarthak Sinha
It's hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused...
TED Talks
Stuart Brown: Play is more than just fun
A pioneer in research on play, Dr. Stuart Brown says humor, games, roughhousing, flirtation and fantasy are more than just fun. Plenty of play in childhood makes for happy, smart adults -- and keeping it up can make us smarter at any age.
TED Talks
María Neira: This is your brain on air pollution
Air pollution knows no borders -- even in your own body, says public health expert María Neira. In this startling talk, she describes how the microscopic particles and chemicals you breathe affect all your major organs (including your...
TED Talks
TED: The pharmacy of the future? Personalized pills, 3D printed at home | Daniel Kraft
We need to change how we prescribe drugs, says physician Daniel Kraft: too often, medications are dosed incorrectly, cause toxic side effects or just don't work. In a talk and concept demo, Kraft shares his vision for a future of...
TED Talks
How synthetic biology can improve our health, food and materials | Emily Leproust
What if we could use biology to restore our balance with nature without giving up modern creature comforts? Advocating for a new kind of environmentalism, scientist and entrepreneur Emily Leproust rethinks modern sustainability at the...
TED Talks
Siddhartha Mukherjee: Soon we'll cure diseases with a cell, not a pill
Current medical treatment boils down to six words: Have disease, take pill, kill something. But physician Siddhartha Mukherjee points to a future of medicine that will transform the way we heal.
SciShow
Will There Ever be a Cure for the Common Cold?
Medicine has made leaps and bounds in treating illnesses in the last century, but are they ever going to get around to curing the common cold? We might be closer than you think.
SciShow
What Is Night Blindness?
Night blindness is real, and it can be caused by any number of things that affect the complicated mechanics of your vision.
TED Talks
Molly Stevens: A new way to grow bone
What does it take to regrow bone in mass quantities? Typical bone regeneration -- wherein bone is taken from a patient’s hip and grafted onto damaged bone elsewhere in the body -- is limited and can cause great pain just a few years...
TED-Ed
TED-ED: Not all scientific studies are created equal - David H. Schwartz
Every day, we are bombarded by attention grabbing headlines that promise miracle cures to all of our ailments -- often backed up by a _scientific study." But what are these studies, and how do we know if they are reliable? David H....
TED-Ed
TED-ED: Why do people get so anxious about math? - Orly Rubinsten
Have you ever sat down to take a math test and immediately felt your heart beat faster and your palms start to sweat? This is called math anxiety, and if it happens to you, you're not alone: Researchers think about 20 percent of the...
SciShow
Why You Should Care About the Plastic in Your Poop
A recent study has concluded that people all over the world are probably ingesting microscopic plastic all the time. Now scientists want to know where this plastic is coming from, how it ends up inside of us, and the damage it could do...
TED Talks
TED: Texting that saves lives - Nancy Lublin
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. When Nancy Lublin started texting teenagers to help with her social advocacy organization, what she found was...
TED-Ed
TED-Ed: How do germs spread (and why do they make us sick)? - Yannay Khaikin and Nicole Mideo
Germs are found on almost every surface we come in contact with, which makes it incredibly common for our bodies to be exposed to them. But why are some of these germs relatively harmless, while others can be fatal? Yannay Khaikan and...
TED Talks
TED: Meet the microscopic life in your home -- and on your face | Anne Madden
Behold the microscopic jungle in and around you: tiny organisms living on your cheeks, under your sofa and in the soil in your backyard. We have an adversarial relationship with these microbes -- we sanitize, exterminate and disinfect...