TED - GETTING UNDER
OUR SKIN

TED - ED

COLLECTIONS

LITERATURE

MATH IN REAL LIFE

UNDER OUR SKIN

OUR CHANGING CLIMATE

OUT OF THIS WORLD

CAN YOU SOLVE IT?

RNAi: Slicing, dicing and serving your cells - Alex Dainis

23 and 1/2 hours

How to grow a bone - Nina Tandon

How X-rays see through your skin - Ge Wang

Why do some people go bald? - Sarthak Sinha

The benefits of good posture - Murat Dalkilinç

How blood pressure works - Wilfred Manzano

How to make a mummy - Len Bloch

Why do blood types matter? - Natalie S. Hodge

Debunking the myths of OCD - Natascha M. Santos

Why do your knuckles pop? - Eleanor Nelsen

How in vitro fertilization (IVF) works - Nassim Assefi and Brian A. Levine

What is leukemia? - Danilo Allegra and Dania Puggioni

Eye vs. camera - Michael Mauser

The effects of underwater pressure on the body - Neosha S Kashef

What causes bad breath? - Mel Rosenberg

Why it’s so hard to cure HIV/AIDS - Janet Iwasa

Learning from smallpox: How to eradicate a disease - Julie Garon and Walter A. Orenstein

Why sitting is bad for you - Murat Dalkilinç

How does the thyroid manage your metabolism? - Emma Bryce

What does the pancreas do? - Emma Bryce

How do your kidneys work? - Emma Bryce

Why are some people left-handed? - Daniel M. Abrams

Could a blind eye regenerate? - David Davila

The evolution of the human eye - Joshua Harvey

At what moment are you dead? - Randall Hayes

What we know (and don't know) about Ebola - Alex Gendler

What are those floaty things in your eye? - Michael Mauser

How does cancer spread through the body? - Ivan Seah Yu Jun

How do the lungs work? - Emma Bryce

What does the liver do? - Emma Bryce

How do scars form? - Sarthak Sinha

How a wound heals itself - Sarthak Sinha

How do germs spread (and why do they make us sick)? - Yannay Khaikin and Nicole Mideo

How do vitamins work? - Ginnie Trinh Nguyen

Why do we pass gas? - Purna Kashyap

What did dogs teach humans about diabetes? - Duncan C. Ferguson

The past, present and future of the bubonic plague - Sharon N. DeWitte

How optical illusions trick your brain - Nathan S. Jacobs

Vestigial structures

What makes tattoos permanent? - Claudia Aguirre

What causes antibiotic resistance? - Kevin Wu

What happens when you get heat stroke? - Douglas J. Casa

How does your brain respond to pain? - Karen D. Davis

How the heart actually pumps blood - Edmond Hui

The cancer gene we all have - Michael Windelspecht

The science of attraction - Dawn Maslar

What are stem cells? - Craig A. Kohn

Cell vs. virus: A battle for health - Shannon Stiles

Why do we cry? The three types of tears - Alex Gendler

A journey through the human eye

The mystery of motion sickness - Rose Eveleth

How do we smell? - Rose Eveleth

How to sequence the human genome - Mark J. Kiel

How does digestion work?

Why is yawning contagious? - Claudia Aguirre

How do pain relievers work? - George Zaidan

How do nerves work? - Elliot Krane

The twisting tale of DNA - Judith Hauck

How breathing works - Nirvair Kaur

Does stress cause pimples? - Claudia Aguirre

How Caffeine Works

DNA: The book of you - Joe Hanson

How do cancer cells behave differently from healthy ones? - George Zaidan

You are your microbes - Jessica Green and Karen Guillemin

How we see color - Colm Kelleher

Insights into cell membranes via dish detergent - Ethan Perlstein

What is fat? - George Zaidan

Why do we have to wear sunscreen? - Kevin P. Boyd

What happens when your DNA is damaged? - Monica Menesini

A curable condition that causes blindness - Andrew Bastawrous

Why do women have periods?

The race to sequence the human genome - Tien Nguyen

How mucus keeps us healthy - Katharina Ribbeck

How stress affects your body - Sharon Horesh Bergquist

How a few scientists transformed the way we think about disease - Tien Nguyen

Proof of Evolution That You Can Find on Your Body

The power of the placebo effect - Emma Bryce

How do glasses help us see? - Andrew Bastawrous and Clare Gilbert

What would happen if you didn’t drink water? - Mia Nacamulli

The surprising reason you feel awful when you're sick - Marco A. Sotomayor

Your body's real age

How hormones work

What Can Herpes Do To Your Brain?

How does asthma work? - Christopher E. Gaw

Why do we itch? - Emma Bryce

Oxygen’s surprisingly complex journey through your body - Enda Butler

Secrets of the X chromosome - Robin Ball

What happens during a heart attack? - Krishna Sudhir

How to master your sense of smell - Alexandra Horowitz

How does your body know what time it is? - Marco A. Sotomayor

How do you get rid of acne?

What causes cavities? - Mel Rosenberg

Is it bad to hold your pee? - Heba Shaheed

How do contraceptives work? - NWHunter

The missing plague that could have changed history

Which sunscreen should you choose? - Mary Poffenroth

How playing sports benefits your body ... and your brain - Leah Lagos and Jaspal Ricky Singh

What is obesity? - Mia Nacamulli

What is epigenetics? - Carlos Guerrero-Bosagna

Why do we hiccup? - John Cameron

Is there a disease that makes us love cats? - Jaap de Roode

Why do our bodies age? - Monica Menesini

5 Weird Involuntary Reflexes Explained!

Why do people have seasonal allergies? - Eleanor Nelsen

The immortal cells of Henrietta Lacks - Robin Bulleri

Why are human bodies asymmetrical? - Leo Q. Wan

How does anesthesia work? - Steven Zheng

What would happen if you didn’t sleep? - Claudia Aguirre

How menstruation works - Emma Bryce

What makes muscles grow? - Jeffrey Siegel

Why is it so hard to cure cancer? - Kyuson Yun

Could we cure aging during your lifetime?

Why are you always tired?

Why do we get goose bumps?

Why are we ticklish?

How old are your ears? (hearing test)

What stretching actually does to your body

Are multivitamins really good for you?

The surprising reason our muscles get tired - Christian Moro

The dangers of mixing drugs - Céline Valéry

What’s that ringing in your ears? - Marc Fagelson

Why do some people hate cilantro?

Performing brain surgery without a scalpel - Hyunsoo Joshua No

How do steroids affect your muscles— and the rest of your body? - Anees Bahji

How does herd immunity work?

What’s the smartest age? - Shannon Odell

Do mosquitos actually bite some people more than others? - Maria Elena De Obaldia

Want to know if you’re pregnant? Use this frog - Carly Anne York

Does COVID mess with your DNA?

Can you change your sleep schedule?

Why is it so hard to break a bad habit?

Why some people don't have an inner monologue

Do you see a face? You're actually hallucinating - Susan G. Wardle

What did people do before anesthesia? - Sally Frampton

How to manage your emotions

Can you freeze your body and come back to life? - Shannon N. Tessier

Why do you want to squeeze cute things? - Joshua Paul Dale

3 ways to end a virus

The science of falling in love - Shannon Odell

Will there be another pandemic in your lifetime?

How friendship affects your brain - Shannon Odell

The benefits of daydreaming - Elizabeth Cox

How does heart transplant surgery work? - Roni Shanoada

A brief (scientific) history of butts

How the COVID-19 vaccines were created so quickly - Kaitlyn Sadtler and Elizabeth Wayne

Why do some people snore so loudly? - Alayna Vaughan

The electrical blueprints that orchestrate life - Michael Levin

What’s in the air you breathe? - Amy Hrdina and Jesse Kroll

How long should your naps be? - Sara C. Mednick

How do antidepressants work? - Neil R. Jeyasingam

Are we all related?

What causes dandruff, and how do you get rid of it? - Thomas L. Dawson

What causes migraines? - Marianne Schwarz

What causes seizures, and how can we treat them? - Christopher E. Gaw

Do personality tests work? - Merve Emre

Why the ancient Greeks couldn't see blue

The incredible, bendable, twistable, expandable elephant trunk - Chase LaDue & Bruce A. Schulte

How fast is the speed of thought? - Seena Mathew

Why is pneumonia so dangerous? - Eve Gaus and Vanessa Ruiz

How does ultrasound work? - Jacques S. Abramowicz

Which type of milk is best for you? - Jonathan J. O’Sullivan & Grace E. Cunningham

What causes panic attacks, and how can you prevent them? - Cindy J. Aaronson

The surprising effects of pregnancy

Are all of your memories real? - Daniel L. Schacter

Why do you get a fever when you're sick? - Christian Moro

Can you outsmart the fallacy that fooled a generation of doctors? - Elizabeth Cox

How well do masks work?

What can DNA tests really tell us about our ancestry? - Prosanta Chakrabarty

How fast can a vaccine be made? - Dan Kwartler

Can steroids save your life? - Anees Bahji

Is human evolution speeding up or slowing down? - Laurence Hurst

When is a pandemic over?

How do ventilators work? - Alex Gendler

How do you know if you have a virus? - Cella Wright

What is a coronavirus? - Elizabeth Cox

What causes opioid addiction, and why is it so tough to combat? - Mike Davis

Which is better: Soap or hand sanitizer? - Alex Rosenthal and Pall Thordarson

Does being cold make you sick?

What yoga does to your body and brain - Krishna Sudhir

How does alcohol make you drunk? - Judy Grisel

The coronavirus explained and how you can combat it

What is schizophrenia? - Anees Bahji

How can we solve the antibiotic resistance crisis? - Gerry Wright

How do blood transfusions work? - Bill Schutt

The accident that changed the world - Allison Ramsey and Mary Staicu

How bones make blood - Melody Smith

What happens to your body when you start exercising regularly

Could a breathalyzer detect cancer? - Julian Burschka

Hacking bacteria to fight cancer - Tal Danino

How does chemotherapy work? - Hyunsoo Joshua No

How does laser eye surgery work? - Dan Reinstein

The science of laziness

How close are we to uploading our minds? - Michael S. A. Graziano

How much sleep do you actually need?

What you should know about vaping and e-cigarettes - Suchitra Krishnan-Sarin

Claws vs. Nails - Matthew Borths

How to 3D print human tissue - Taneka Jones

Ancient Rome’s most notorious doctor - Ramon Glazov

The most common STI in the world - Emma Bryce

How do viruses jump from animals to humans? - Ben Longdon

Why do humans have a third eyelid? - Dorsa Amin

A brief history of cannibalism - Bill Schutt

Your body vs. Implants - Kaitlyn Sadtler

How close are we to eradicating HIV? - Philip A. Chan

Why do we laugh?

The mysterious science of pain - Joshua W. Pate

Why haven’t we cured arthritis? - Kaitlyn Sadtler and Heather J. Faust

What would happen if you stopped brushing your teeth?

Is the 5-Second Rule true?

The brain may be able to repair itself -- with help - Jocelyne Bloch

Why is meningitis so dangerous? - Melvin Sanicas

7 organs you could live without

What happens in your body when you swallow gum?

How laser tattoo removal works

The most extreme births in the animal kingdom

How this disease changes the shape of your cells - Amber M. Yates

What causes heartburn? - Rusha Modi

What causes nosebleeds?

How do cigarettes affect the body? - Krishna Sudhir

Why is it so hard to cure ALS? - Fernando Vieira

How much of what you see is a hallucination? - Elizabeth Cox

How do we study living brains? - John Borghi and Elizabeth Waters

What causes insomnia? - Dan Kwartler

How do your hormones work? - Emma Bryce

Why does your voice change as you get older? - Shaylin A. Schundler

The psychology of post-traumatic stress disorder - Joelle Maletis

Can you still feel a limb that's gone? - Joshua W. Pate

Is there a secret to creativity?

What causes headaches? - Dan Kwartler

How to stay calm under pressure - Noa Kageyama and Pen-Pen Chen

What causes body odor? - Mel Rosenberg

What is dust made of? - Michael Marder

The science of skin - Emma Bryce

The science of hearing - Douglas L. Oliver

What happens during a stroke? - Vaibhav Goswami

How your digestive system works - Emma Bryce

Who's at risk for colon cancer? - Amit H. Sachdev and Frank G. Gress

What causes constipation? - Heba Shaheed

What are mini brains? - Madeline Lancaster

How did teeth evolve? - Peter S. Ungar

How does the immune system work? - Emma Bryce

Are there universal expressions of emotion? - Sophie Zadeh

Why do we sweat? - John Murnan

How often should you get a flu shot? - Melvin Sanicas

How your muscular system works - Emma Bryce

The strange case of the cyclops sheep - Tien Nguyen

How aspirin was discovered - Krishna Sudhir

The surprising cause of stomach ulcers - Rusha Modi

Is DNA the future of data storage? - Leo Bear-McGuinness

Cell membranes are way more complicated than you think - Nazzy Pakpour

How does caffeine keep us awake? - Hanan Qasim

What causes kidney stones? - Arash Shadman

How does your body process medicine? - Céline Valéry

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