PTSD, isolation, depression ... These talks tackle the visible and invisible wounds left behind by violent conflict.

Be inspired by these speakers who found comfort in transforming grief and sadness into action, art and progress.

What do we do with all this online venom and in-person vitriol? An exploration of where this hate comes from -- and bold ways to dismantle it.

Clemantine Wamariya was six years old when the Rwandan Civil War forced her and her sister to flee their home in Kigali, leaving their parents and everything they knew behind. In this deeply personal talk, she tells the story of how she became a refugee, living in camps in seven countries over the next six years -- and how she's tried to make se...

On one awful night in 1995, Ples Felix's 14-year-old grandson murdered Azim Khamisa's son in a gang initiation fueled by drugs, alcohol and a false sense of belonging. The deadly encounter sent Khamisa and Felix down paths of deep meditation, to forgive and to be forgiven -- and in an act of bravery and reconciliation, the two men met and forged...

At TED2009, Al Gore presents updated slides from around the globe to make the case that worrying climate trends are even worse than scientists predicted, and to make clear his stance on "clean coal."

With technical advancement comes great ethical responsibility. In these talks, amazing, life-altering feats of science make us ask: How could we mess this up?

These TED Talks advocate for creating bridges of compassion and understanding.

Think twice when picking what pasta you want for dinner. The shape of your noodle makes a difference, explains Paola Antonelli, senior curator at The Museum of Modern Art.

Robin Chase founded Zipcar, the world’s biggest car-sharing business. That was one of her smaller ideas. Here she travels much farther, contemplating road-pricing schemes that will shake up our driving habits and a mesh network vast as the Interstate.

We may not be as deeply divided as we think -- at least when it comes to health, says Rebecca Onie. In a talk that cuts through the noise, Onie shares research that shows how, even across economic, political and racial divides, Americans agree on what they need to live good lives -- and asks both health care providers and patients to focus on wh...

Go on an emotional journey with these courageous speakers who share how they transformed their pain into forgiveness.

A dung beetle has a brain the size of a grain of rice, and yet it shows a tremendous amount of intelligence when it comes to rolling its food source -- animal excrement -- home. How? It all comes down to a dance.

Tough conversations, lasting memories, shouldering loss together ... These speakers embody the highs and lows of true friendship.

Camels are so well adapted to the desert that it's hard to imagine them living anywhere else. But what if we have them pegged all wrong? What if those big humps, feet and eyes were evolved for a different climate and a different time? In this talk, join Radiolab's Latif Nasser as he tells the surprising story of how a very tiny, very strange fos...

Robots and algorithms are getting good at jobs like building cars, writing articles, translating -- jobs that once required a human. So what will we humans do for work? Andrew McAfee walks through recent labor data to say: We ain't seen nothing yet. But then he steps back to look at big history, and comes up with a surprising view of what comes ...

Fresh thinking on how we can make a health system that works better for everyone.

TED2015 transforms the “or” in the classic party game name into “and.” Why? Because truth often requires us to be daring, and daring often leads us to new truths. Talks to help you get in the spirit for TED2015...

This original TED series celebrates the lasting genius of everyday objects so perfectly designed that they changed the world around them.

Given $50 billion to spend, which would you solve first, AIDS or global warming? Danish political scientist Bjorn Lomborg comes up with surprising answers.

Do you know where everything you buy comes from? Olivia Tyler illuminates the daunting challenges companies face when enforcing sustainability across their supply chains.

The euphonium, with its sweet brass sound, is rarely heard outside of traditional brass bands. Cutting loose on the euph, prodigy Matthew White performs Nat McIntosh's hip-hop-inflected "The Warrior Comes Out to Play."

By dissecting a cockroach ... yes, live on stage ... TED Fellow and neuroscientist Greg Gage shows how brains receive and deliver electric impulses -- and how legs can respond. This talk comes from the TED-Ed project.

The pain of personal loss, war and conflict is universal. These speakers share large and small ways to remember those lost even long after they're gone.

In this deeply personal talk, Nigerian writer Chris Abani says that "what we know about how to be who we are" comes from stories. He searches for the heart of Africa through its poems and narrative, including his own.

On September 29, 2018, the TEDx community will join forces for the second inaugural TEDxGlobalDay. Together with their teams, and virtually with teams all over the globe, TEDx organizers will spend the day focusing on the problems most urgent to their community—first by discussing potential solutions and then by participating in local action. TE...

Why can't our extremely complex eyes render simple optical illusions? Surprise, surprise -- it comes back to the brain, which has only evolved to encounter natural stimuli. At TEDYouth 2012, Mark Changizi explains how the brain reckons with optical illusions.[Directed by TED Media].

Pollen goes unnoticed by most of us, except when hay fever strikes. But microscopes reveal it comes in stunning colors and shapes -- and travels remarkably well. Jonathan Drori gives an up-close glimpse of these fascinating flecks of plant courtship.

Machine learning isn't just for simple tasks like assessing credit risk and sorting mail anymore -- today, it's capable of far more complex applications, like grading essays and diagnosing diseases. With these advances comes an uneasy question: Will a robot do your job in the future?

Jessica Donohue examines what she's learned from her career working with data, how old industry lessons still apply as we enter the era of Big Data, and why passion still (and always) matters when it comes to data analysis.