TED-Ed
The dark history of arsenic | Neil Bradbury
No substance has been as constant an ally to insidious scheming as arsenic, the so-called “king of poisons.” In its chemically pure form, it isn’t much of a threat because our bodies don’t absorb it well; it’s when arsenic combines with...
TED-Ed
What actually causes high cholesterol? | Hei Man Chan
In 1968, the American Heart Association made an announcement that would influence people’s diets for decades: they recommended that people avoid eating more than three eggs a week. Their reasoning was that the cholesterol packed into egg...
MinuteEarth
Why Don't Snakes Poison Themselves?
Many animal species stuff themselves with toxic chemicals for protection, which forces them to use a handful of distinct strategies to avoid becoming victims of their own weapons.
MinuteEarth
Why Don't Electric Eels Shock Themselves?
Electric eels can emit some of the largest shocks in the animal kingdom - but why don't they shock themselves?
MinuteEarth
Why Do Butterflies Bother Being Caterpillars?
It seems wild that some animals basically trade in their bodies for new ones during their lifetime, but it's actually really common – and it makes a lot of sense.
Be Smart
%$?# Allergies!
Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it's also about sneezing, watery red eyes, and a runny nose, thanks to allergies. In this week's video, you'll learn why we get allergies,...
TED Talks
Unveiling the Self: A Dialogue on Identity, Acting, and Consciousness
Yara Shahidi and Anil Seth explore the complexities of self-perception and identity, discussing how acting and neuroscience reveal the dynamic and multifaceted nature of the self. Shahidi reflects on how embodying characters deepens her...
TED Talks
Exploring Consciousness and AI: A Dialogue with Yara Shahidi and Anil Seth
Actor Yara Shahidi and neuroscientist Anil Seth explore the nature of consciousness and its implications. Seth reflects on his lifelong fascination with the mystery of why we experience the world as we do, linking it to practical...
TED-Ed
TED-Ed: How to manage your stress more effectively | Shannon Odell
An upcoming project deadline, a fight with a family member, or even an embarrassing moment can easily trigger our body’s stress response. While we can’t always control what life throws at us, there are ways to better prepare for...
TED-Ed
TED-Ed: Greek mythology’s greatest warrior | Iseult Gillespie
Born to a sea nymph and a king, and trained by the legendary centaur Chiron, Achilles was a demigod destined for greatness. When Greece declared war on Troy, Achilles knew the war was written into his destiny. With horses born from the...
TED-Ed
TED-Ed: This mushroom will kill you before you know what’s happening | Michael Beug
Humans have known about the toxicity of death cap mushrooms for millennia. Yet they continue to pose a significant threat to unsuspecting foragers and mushroom hunters throughout the world. Today, death caps are responsible for more than...
TED-Ed
TED-Ed: What staying up all night does to your brain | Anna Rothschild
You’re just one history final away from a relaxing spring break. But you still have so much to study! You decide to follow in the footsteps of many students before you, and pull an all-nighter. So, what happens to your brain when you...
TED Talks
TED: Why your body fights weight loss | Katherine Saunders
Why does losing weight often feel like an uphill battle? Physician Katherine Saunders unpacks how our bodies are wired to store fat, revealing that obesity isn’t simply a lack of willpower — it’s a complex, chronic disease rooted in...
TED Talks
TED: Can you love your body — and still want to change it? | Gabriella Lascano
Gabriella Lascano rose to prominence as a plus-size influencer, advocating for respect at any size with her natural blend of confidence and self-love. She shares how a friend's death led to a candid reassessment of her own health and...
TED Talks
TED: A mouse with two dads — and a new frontier for biology | Katsuhiko Hayashi
You're familiar with the story: a sperm and an egg meet to create an embryo, which has the potential to give rise to new life. But what if you could create a sperm or egg from any cell, even a single skin cell? Biologist Katsuhiko...
TED Talks
TED: Why do some bodies respond differently to disease? | Erika Moore
TED Fellow and equity bioengineer Erika Moore investigates how cells controlling inflammation behave differently depending on a patient's background. By focusing on the "who" behind the disease, Moore is uncovering why certain diseases...
TED-Ed
TED-Ed: How do heat waves affect your body? | Carolyn Beans
In many parts of the world heat waves are happening more often with greater intensity and for longer durations. By 2050, Earth’s mid-latitudes could be experiencing extreme heat between 90 and 180 days a year, with tropical regions...
Amoeba Sisters
Lymphatic System
Explore the lymphatic system with the Amoeba Sisters! This introduction talks about lymph, the general way lymph travels in the lymphatic system, primary and secondary lymphoid organs and tissues, general functions of the lymphatic...
PBS
Stephen King reflects on his iconic career and latest release ‘You Like It Darker’
Fifty years ago, a 26-year-old rural Maine school teacher wrote the horror novel “Carrie.” That man, Stephen King, has gone on to write more than 60 books and many have been turned into such films as “The Shining” and “Shawshank...
MinutePhysics
The Physics of Car Crashes
How is the chemical energy of gasoline transformed into kinetic energy of a moving car? And where does that kinetic energy go when the car crashes into something and stops moving?
Bozeman Science
The Hierarchy of Life
Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...
Crash Course
Let's Talk About Sex: Crash Course Psychology
Sex is complicated for different reasons in different cultures. But, it's the entire purpose of life, so there's no reason to blush. In this episode of Crash Course Psychology, Hank talks about Kinsey, Masters and Johnson, Sexuality,...
SciShow Kids
Penguins, Birds That Fly in Water! | SciShow Kids
Squeaks and Jessi are learning all about the animals that live at the bottom of the world, including penguins - emperor penguins, macaroni penguins, and more! We learn why penguins look like they're all dressed up, and what kind of food...