SciShow
How Do Turtles Live So Long?
We all know turtles live an amazingly long time, but what's their secret? And can we apply it to humans?
TED-Ed
TED-Ed: Why sitting is bad for you - Murat Dalkilinc
Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilin�c...
TED-Ed
TED-Ed: Why do women have periods?
A handful of species on Earth share a seemingly mysterious trait: a menstrual cycle. We're one of the select few mammals on Earth that menstruate, and we also do it more than any other animal, even though it's a waste of nutrients, and...
SciShow
Are Soft Cheeses Dangerous During Pregnancy?
You may have heard the oddly specific advice that pregnant people shouldn't eat soft cheeses, but there's a very good reason for that, and it applies to more than just dairy products.
TED-Ed
TED-Ed: How the food you eat affects your brain - Mia Nacamulli
When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired after lunch? Or so restless at night? Mia...
TED-Ed
TED-ED: The science of attraction - Dawn Maslar
Romantic chemistry is all about warm, gooey feelings that gush from the deepest depths of the heart-right? Not quite. Actually, the real boss behind attraction is your brain, which runs through a very quick, very complex series of...
TED-Ed
TED-ED: Would winning the lottery make you happier? - Raj Raghunathan
Imagine winning a multi-million dollar lottery tomorrow. If you're like many of us, you'd be ecstatic, unable to believe your good luck. But would that joy still be there a few years later? Raj Raghunathan describes a phenomenon called...
TED-Ed
TED-Ed: Why is it so hard to cure ALS? - Fernando Vieira
Amyotrophic Lateral Sclerosis (ALS), also called motor neuron disease and Lou Gehrig's Disease, affects about two out of every 100,000 people worldwide. When a person has ALS, their motor neurons - the cells responsible for all voluntary...
TED-Ed
TED-Ed: How spontaneous brain activity keeps you alive - Nathan S. Jacobs
The wheels in your brain are constantly turning, even when you're asleep or not paying attention. In fact, most of your brain's activities are ones you'd never be aware of - unless they suddenly stopped. Nathan S. Jacobs takes us inside...
TED-Ed
TED-Ed: The surprising reason you feel awful when you're sick - Marco A. Sotomayor
It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. It's logical to assume that this miserable medley of symptoms is...
TED-Ed
TED-Ed: The last living members of an extinct species | Jan Stejskal
In the savannahs of Kenya, two female northern white rhinos, Nájin and Fatu, munch contentedly on grass. They are the last two known northern white rhinos left on Earth. Their species is functionally extinct— without a male, they can't...
TED Talks
TED: A young scientist's quest for clean water | Deepika Kurup
Deepika Kurup has been determined to solve the global water crisis since she was 14 years old, after she saw kids outside her grandparents' house in India drinking water that looked too dirty even to touch. Her research began in her...
SciShow
Why You Can't Really Sweat Out Toxins
The human body has a few built-in methods for getting rid of toxins. Sweating seems like it should be one of them, but it isn't doing as much as you think.
SciShow
Why Nutrition Studies Keep Contradicting Each Other
It seems like nutrition studies contradict a lot, and it’s practically impossible to get a straight answer on whether a given food or supplement is good for you. But why?
TED-Ed
TED-Ed: How do your kidneys work? - Emma Bryce
After drinking a few glasses of water on a hot day, you might be struck with a sudden urge. Behind that feeling are two bean-shaped organs that work as fine-tuned internal sensors. Emma Bryce details how the incredible kidneys balance...
SciShow
Human Parasites
Hank tells us about all of the things that live on us or in us - the good, the bad, and the very, very ugly.
TED Talks
TED: A flavorful field guide to foraging | Alexis Nikole Nelson
Whether it's dandelions blooming in your backyard or purslane sprouting from the sidewalk, vegan forager Alexis Nikole Nelson is on a mission to show how freely growing flora could make its way to your plate. With contagious enthusiasm...
SciShow
6 Home Remedies Actually Supported by Science
In the comments of our episode debunking six popular home remedies, a lot of you asked us if there are any that do work. Well, here’s the answer! Chapters 1 PRUNES FOR CONSTIPATION 1:58 OATMEAL FOR DRY SKIN 2:34 3 GINGER FOR MORNING...
TED-Ed
TED-ED: Why do you need to get a flu shot every year? - Melvin Sanicas
All year long, researchers at hospitals around the world collect samples from flu patients and send them to top virology experts with one goal: to design the vaccine for the next flu season. But why do we need a new one every year?...
TED-Ed
TED-Ed: How does your brain respond to pain? - Karen D. Davis
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"...
TED-Ed
TED-Ed: How do viruses jump from animals to humans? - Ben Longdon
Discover the science of how viruses can jump from one species to another and the deadly epidemics that can result from these pathogens. -- At a Maryland country fair in 2017, farmers reported feverish hogs with inflamed eyes and running...
TED-Ed
TED-Ed: Why do some people go bald? - Sarthak Sinha
What do Charles Darwin, Michael Jordan, and Yoda have in common? They, like many other historical and fictive individuals, are bald. Scientists have long pondered, why do some people lose their hair, and how can we bring it back? Sarthak...
TED-Ed
TED-ED: What is epigenetics? - Carlos Guerrero-Bosagna
Here's a conundrum: Identical twins originate from the same DNA ... so how can they turn out so different - even in traits that have a significant genetic component? Carlos Guerrero-Bosagna explains that while nature versus nurture has a...
TED Talks
TED: How your body could become its own diagnostic lab | Aaron Morris
We need an inside-out approach to how we diagnose disease, says immuno-engineer and TED Fellow Aaron Morris. Introducing cutting-edge medical research, he unveils implantable technology that gives real-time, continuous analysis of a...