TED-Ed
TED-Ed: Which is better for you: "Real" meat or "fake" meat? | Carolyn Beans
In 2021, a survey of over 1,000 Americans found that nearly two-thirds had eaten plant-based meat alternatives in the past year. Many cited potential health and environmental benefits as their motivation. But are these alternative meats...
TED-Ed
TED-Ed: Food expiration dates don't mean what you think | Carolyn Beans
Countries around the world waste huge amounts of food every year: roughly a fifth of food items in the US are tossed because consumers aren't sure how to interpret expiration labels. But most groceries are still perfectly safe to eat...
TED-Ed
TED-Ed: How to deal with rejection | TED-Ed
Rejection hurts. It's incredibly painful to feel like you're not wanted — and we do mean painful. Researchers found that we relate rejection to being "hurt," using terms like "crushed" or "broken-hearted." So, why does rejection trigger...
TED-Ed
TED-Ed: How stretching actually changes your muscles | Malachy McHugh
An athlete is preparing for a game. They've put on their gear and done their warmup, and now it's time for one more routine — stretching. Typically, athletes stretch before physical activity to avoid injuries like strains and tears. But...
TED-Ed
TED-Ed: The science of milk - Jonathan J. O'Sullivan
The milk industry produces in excess of 840 million tons of products each year. Why do humans drink so much milk? And given that all mammals lactate, why do we favor certain types of milk over others? Jonathan J. O'Sullivan describes how...
TED-Ed
TED-Ed: How fast can a vaccine be made?
When a new pathogen emerges, our bodies and healthcare systems are left vulnerable. And when this pathogen causes the outbreak of a pandemic, there’s an urgent need for a vaccine to create widespread immunity with minimal loss of life....
TED-Ed
TED-Ed: A day in the life of an Aztec midwife
The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan, the female warrior goddess at the center of the Aztec seasonal festival, who must be kept happy or she will bring bad luck. Xoquauhtli...
TED-Ed
TED-ED: Can machines read your emotions? - Kostas Karpouzis
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...
TED-Ed
TED-Ed: Iseult Gillespie: Frida Kahlo: The woman behind the legend
In 1925, Frida Kahlo was on her way home from school in Mexico City when the bus she was riding collided with a streetcar. She suffered near-fatal injuries and her disability became a major theme in her paintings. Over the course of her...
TED-Ed
TED-Ed: A brief history of cannibalism - Bill Schutt
Human cannibalism is a lot more common than you might think. Dive into its complex history and see its uses in medicine, cultural rituals and in times of survival. -- 15th century Europeans believed they had hit upon a miracle cure: a...
TED-Ed
TED-ED: Could a breathalyzer detect cancer? - Julian Burschka
How is it that a breathalyzer can measure the alcohol content in someone’s blood, hours after they had their last drink, based on their breath alone? And could we use this same technology to detect disease by analyzing a person’s breath,...
TED-Ed
TED-ED: Is our climate headed for a mathematical tipping point? - Victor J. Donnay
Scientists have warned that as CO2 levels in the atmosphere rise an increase in Earth's temperature by even two degrees could lead to catastrophic effects across the world. But how can such a tiny, measurable change in one factor lead to...
TED-Ed
TED-ED: The complicated history of surfing - Scott Laderman
Today, surfing is a multi-billion-dollar global industry, with tens of millions of enthusiasts worldwide. For some it's a serious sport; for others, just a way to let loose. But despite its casual association with fun and sun, surfing...
TED-Ed
TED-Ed: Jeff Leek and Lucy McGowan: Can you spot the problem with these headlines? (Level 1)
In medicine, there's often a disconnect between news headlines and the scientific research they cover. While headlines are designed to catch attention, many studies produce meaningful results when they focus on a narrow, specific...
TED-Ed
TED-Ed: The Chinese legend of the butterfly lovers | Lijun Zhang
Although only boys were allowed at the Confucius Academy, what Zhu Yingtai wanted was to go to school. She begged her parents to let her attend dressed as a boy and, seeing her determination and clever disguises, they finally agreed— as...
TED-Ed
TED-ED: What's the difference between hibernation and sleep? - Sheena Faherty
The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping into a state of suspended animation. The female black bear can give birth while she hibernates. The fat-tailed dwarf lemur prepares to hibernate by...
TED-Ed
Can you be awake and asleep at the same time? | Masako Tamaki
Many animals need sleep. But all of the threats and demands animals face don't just go away when it's time to doze. That's why a range of birds, mammals, and even humans experience some degree of asymmetrical sleep, where parts of the...
TED-Ed
TED-Ed: The surprising effects of pregnancy | TED-Ed
Muscles and joints shift and jostle. The heart's pounding rhythm speeds up. Blood roars through arteries and veins. Over the course of a pregnancy, every organ in the body changes. Initiated by a range of hormones, these changes begin as...
TED-Ed
TED-Ed: What is HPV and how can you protect yourself from it? - Emma Bryce
Get informed on the causes and risks of human papillomavirus, HPV, and how to protect yourself from the infection. -- At some point, most sexually active people will be infected with human papillomavirus, or HPV. There are over 100 types...
TED-Ed
TED-Ed: Ethical dilemma: The burger murders | George Siedel and Christine Ladwig
You founded a company that manufactures meatless burgers that are sold in stores worldwide. But you've recently received awful news: three people in one city died after eating your burgers. A criminal has injected poison into your...
TED-Ed
TED-Ed: Is it possible to lose weight fast? | Hei Man Chan
In the wealthiest circles of Victorian England, dieters would swallow an unhatched tapeworm and let it grow inside them by consuming undigested meals. And while modern fad diets aren't usually this extreme, they do promise similar...
TED-Ed
What happens when you die? A poetic inquiry | Emily Dickinson
Death, a kindly gentleman riding in a horse carriage, comes to collect a woman for her journey to the afterlife. So begins Emily Dickinson's poem "Because I could not stop for Death," an exploration of both the uncertainties of death and...
TED-Ed
TED-Ed: What we know (and don't know) about Ebola - Alex Gendler
The highly virulent Ebola virus has seen a few major outbreaks since it first appeared in 1976 -- with the worst epidemic occurring in 2014. How does the virus spread, and what exactly does it do to the body? Alex Gendler details what...
TED-Ed
TED-Ed: How to stay calm under pressure - Noa Kageyama and Pen-Pen Chen
Your favorite athlete closes in for a win; the crowd holds its breath, and at the crucial moment ... she misses the shot. That competitor just experienced the phenomenon known as "choking," where despite months, even years, of practice,...