Ideas change everything

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Playlist

The most popular talks of 2019

Which TED Talks were watched most in 2019? These talks reflect a year defined by fighting for what's right, believing in the good despite all the bad, supporting others and yourself -- and hoping for the best in the decade to come.

The disarming case to act right now on climate change

In this passionate call to action, 16-year-old climate activist Greta Thunberg explains why, in August 2018, she walked out of school and organized a strike to raise awareness of global warming, protesting outside the Swedish parliament and grabbing the world's attention. "The climate crisis has already been solved. We already have all the facts and solutions," Thunberg says. "All we have to do is to wake up and change."

Lýdia Machová

The secrets of learning a new language

Want to learn a new language but feel daunted or unsure where to begin? You don't need some special talent or a "language gene," says Lýdia Machová. In an upbeat, inspiring talk, she reveals the secrets of polyglots (people who speak multiple languages) and shares four principles to help unlock your own hidden language talent -- and have fun while doing it.

Carole Cadwalladr

Facebook's role in Brexit -- and the threat to democracy

In an unmissable talk, journalist Carole Cadwalladr digs into one of the most perplexing events in recent times: the UK's super-close 2016 vote to leave the European Union. Tracking the result to a barrage of misleading Facebook ads targeted at vulnerable Brexit swing voters -- and linking the same players and tactics to the 2016 US presidential election -- Cadwalladr calls out the "gods of Silicon Valley" for being on the wrong side of history and asks: Are free and fair elections a thing of the past? (NOTE: This video has been edited as a result of judgment in the Court of Appeal in England and Wales in a libel action by Arron Banks, the funder of the Leave.EU Brexit campaign, against Carole Cadwalladr. A judge found that the talk was lawful at the time of delivery, however due to a subsequent change in circumstances part of the talk was found to be unlawful in England and Wales and has therefore been removed.)

We don't "move on" from grief. We move forward with it

In a talk that's by turns heartbreaking and hilarious, writer and podcaster Nora McInerny shares her hard-earned wisdom about life and death. Her candid approach to something that will, let's face it, affect us all, is as liberating as it is gut-wrenching. Most powerfully, she encourages us to shift how we approach grief. "A grieving person is going to laugh again and smile again," she says. "They're going to move forward. But that doesn't mean that they've moved on."

Sleep is your superpower

Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get sleep -- and the alarmingly bad things that happen when you don't, for both your brain and body. Learn more about sleep's impact on your learning, memory, immune system and even your genetic code -- as well as some helpful tips for getting some shut-eye.

George Blair-West

3 ways to build a happy marriage and avoid divorce

Choosing to marry and share your life with someone is one of the most important decisions you can make in life. But with divorce rates approaching fifty percent in some parts of the world, it's clear we could use some help picking a partner. In an actionable, eye-opening talk, psychiatrist George Blair-West shares three keys to preventing divorce -- and spotting potential problems while you're still dating.

The difference between healthy and unhealthy love

In a talk about understanding and practicing the art of healthy relationships, Katie Hood reveals the five signs you might be in an unhealthy relationship -- with a romantic partner, a friend, a family member -- and shares the things you can do every day to love with respect, kindness and joy. "While love is an instinct and an emotion, the ability to love better is a skill we can all build and improve on over time," she says.

This could be why you're depressed or anxious

In a moving talk, journalist Johann Hari shares fresh insights on the causes of depression and anxiety from experts around the world -- as well as some exciting emerging solutions. "If you're depressed or anxious, you're not weak and you're not crazy -- you're a human being with unmet needs," Hari says.

Brittany Packnett Cunningham

How to build your confidence -- and spark it in others

"Confidence is the necessary spark before everything that follows," says educator and activist Brittany Packnett Cunningham. In an inspiring talk, she shares three ways to crack the code of confidence -- and her dream for a world where revolutionary confidence helps turn our most ambitious dreams into reality.

3 ways to measure your adaptability -- and how to improve it

When venture investor Natalie Fratto is determining which start-up founder to support, she doesn't just look for intelligence or charisma; she looks for adaptability. In this insightful talk, Fratto shares three ways to measure your "adaptability quotient" -- and shows why your ability to respond to change really matters.

What almost dying taught me about living

"The hardest part of my cancer experience began once the cancer was gone," says author Suleika Jaouad. In this fierce, funny, wisdom-packed talk, she challenges us to think beyond the divide between "sick" and "well," asking: How do you begin again and find meaning after life is interrupted?

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