Why do we sleep?
A neuroscientist tackles an age-old question
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Success: What really matters?
Can we re-define our ideas of success? 10 speakers explore
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The Mathematics of Love
TED Book: What are the chances of finding love?
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Latest stories
Idea in depth

The 9 limits of our planet … and how we’ve raced past 4 of them

Written by Helen Walters • Posted Mar 5, 2015
Johan Rockström says humanity has already raced past four of the nine boundaries keeping our planet hospitable to modern life. Writer John Carey digs into the theory -- and why Rockström says his isn't, actually, a doomsday message.
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Sex: Let’s talk

Written by Thu-Huong Ha • Posted Mar 3, 2015
In this exclusive TED video, sex ed teacher Al Vernacchio and Make Love Not Porn founder Cindy Gallop discuss why having "the" talk with our kids is not enough.
Idea in depth

The shortest paths to happiness. Literally

Written by Thu-Huong Ha • Posted Feb 24, 2015
Figuring out how to walk from A to B is easy in the age of online mapping tools. Just plug in two addresses and off you go. But sometimes getting to a place as quickly as possible isn't the priority. Take a look at a project in which researchers tried to figure out a city's "happy" routes.

See more stories at ideas.ted.com

TED Conferences
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TEDActive 2015
TEDActive 2015
Truth and Dare.
March 16–20 2015 · Whistler, BC, Canada

In 2015, we will seek to challenge our core beliefs in search of deeper truth, while we celebrate the thinkers, dreamers and mavericks who dare to offer bold new alternatives.

Join us at TEDActive 2015, where you can actively engage in a creative community while enjoying the TED Conference on beautiful HD screens in the relaxed, award-winning environment of Whistler. Make new friends, explore innovative experiences, contribute to workshops and discussions, and see what impact you can have.

Apply now
TED Books
TED Books
The Art of Stillness: Adventures in Going Nowhere
By Pico Iyer

An unexpected truth from a celebrated travel writer: stillness just might be the ultimate adventure. Pico Iyer reveals how stillness can act as a creative catalyst, and advocates for a way of living that counters the frenetic design of our modern lives.

Available now

About TED

TED is a platform for ideas worth spreading. Started in 1984 as a conference where technology, entertainment and design converged, TED today shares ideas from a broad spectrum — from science to business to global issues — in more than 100 languages. Meanwhile, independent TEDx events help share ideas in communities around the world.

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