TED-Ed

For a full year, A.J. Jacobs followed every piece of health advice he could -- from applying sunscreen by the shot glass to wearing a bicycle helmet while shopping. Onstage at TEDMED, he shares the surprising things he learned.

Uploaded 26-07-13

Talk by A. J. Jacobs.



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Dig into the science of what makes period cramps so painful, and find out what we still don’t know about this common experience.

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Period pain affects hundreds of millions of people. Anywhere from 50 to 90% of people who menstruate deal with painful abdominal or pelvic cramps during their period. Individual experiences can vary, from mild discomfort, to throbbing aches, to contraction-like cramps that rival the pain of labor. So, why do menstrual cramps hurt so much? Chen X. Chen explains this surprisingly common experience.

Lesson by Chen X. Chen, directed by Caitlin McCarthy.

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View full lesson: https://ed.ted.com/lessons/3-things-that-cause-painful-periods-chen-x-chen
Dig deeper with additional resources: https://ed.ted.com/lessons/3-things-that-cause-painful-periods-chen-x-chen/digdeeper

Animator's website: https://www.strangebeast.tv/directors/caitlin-mccarthy
Music: https://www.workplaywork.com
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Dig into the body's biological process that heals a broken bone, and find out how different kinds of fractures are mended.

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The human body’s 206 bones come in many shapes and sizes: short bones, long bones, flat bones, irregular bones. Roughly 50% of people will break a bone at some point in their lives. But whether the cause is as mundane as a slip on the ice or as dramatic as a tightrope-walking accident, how do our broken bones heal? Gurpreet Baht and Natalie Pang dig into the incredible biological process.

Lesson by Gurpreet Baht and Natalie Pang, directed by Eliška Oz, Lee Oz, Oz Animation.

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View full lesson: https://ed.ted.com/lessons/what-happens-when-you-break-a-bone-gurpreet-baht-and-natalie-pang
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Animator's website: https://www.ozanimation.com
Music: https://www.wonderboyaudio.com
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Dig into the inaccuracies of flat maps and how different map designs can shift our point of view.

Uploaded 29-03-21

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Fourteen Greenlands could fit in Africa— but you wouldn’t guess it from most maps of the world. The fact is, every world map humans have ever made is wrong. Actually, it’s impossible to make a flat map of the whole spherical world 100% right. So why do we bother with these inaccurate maps at all? Kayla Wolf explores how even the simplest changes in map design can shift our point of view.

Lesson by Kayla Wolf, directed by Hernando Bahamon, Globizco Studios.

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View full lesson: https://ed.ted.com/lessons/why-every-world-map-is-wrong-kayla-wolf
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Animator's website: http://globizcostudios.com/
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"You're a fishmonger!" By taking a closer look at Shakespeare's words--specifically his insults--we see why he is known as a master playwright whose works transcend time and appeal to audiences all over the world.

Lesson by April Gudenrath, narration by Juliet Blake, animation by TED-Ed.

View the full lesson: http://ed.ted.com/lessons/insults-by-shakespeare

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Where do squid, jellyfish and other sea creatures begin life? The story of a sea urchin reveals a stunningly beautiful saga of fertilization, development and growth in the ocean depths.

Lesson by Tierney Thys, visualization by Christian Sardet (CNRS/Tara Oceans), Noé Sardet, and Sharif Mirshak (Plankton Chronicles Project, Parafilms).

View the full lesson: http://ed.ted.com/lessons/how-life-begins-in-the-deep-ocean

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View full lesson: http://ed.ted.com/lessons/the-fight-for-the-right-to-vote-in-the-united-states-nicki-beaman-griffin

Uploaded 05-11-13

In the United States today, if you are over eighteen, a citizen, and the resident of a state, you can vote (with some exceptions). So, how have voting rights changed since the first election in 1789? Nicki Beaman Griffin outlines the history of the long fight for a more inclusive electorate.

Lesson by Nicki Beaman Griffin, animation by Flaming Medusa Studios.



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How do we choose which news to consume? Get the scoop on how opinions and facts affect the news and how to tell them apart.

Uploaded 05-06-14

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With the advent of the Internet and social media, news is distributed at an incredible rate by an unprecedented number of different media outlets. How do we choose which news to consume? Damon Brown gives the inside scoop on how the opinions and facts (and sometimes non-facts) make their way into the news and how the smart reader can tell them apart.

Lesson by Damon Brown, animation by Augenblick Studios.

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View full lesson: http://ed.ted.com/lessons/how-to-choose-your-news-damon-brown



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Dig into trickle-down economics, which claims that tax cuts for corporations and the wealthy stimulate the economy and improve people's lives.

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In 1981, the US economy was struggling: unemployment rates were climbing and inflation had peaked at an all-time high. To combat these issues, President Reagan introduced a number of economic policies, including tax cuts for large corporations and high-income earners. But did these policies actually stimulate economic growth or improve circumstances for Americans? Jonathan Smith investigates.

Lesson by Jonathan Smith, directed by Gavin Edwards, Movult.

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View full lesson: https://ed.ted.com/lessons/does-trickle-down-economics-actually-work-jonathan-smith
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Animator's website: https://www.movult.com
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View full lesson: http://ed.ted.com/lessons/five-fingers-of-evolution

How can a "thumbs up" sign help us remember five processes that impact evolution? The story of the Five Fingers of Evolution gives us a clever way of understanding change in gene pools over time.

Lesson by Paul Andersen, animation by Alan Foreman.

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