Tara Winkler speaks out against the spread of orphanages in developing countries, caused by the good intentions of foreign donors, and of harm that comes to children when they are separated from family and left to grow up in institutions. Tara is the Managing Director of the Cambodian Children’s Trust (CCT) which she established with Jedtha Pon in 2007 in order to rescue fourteen children from a corrupt and abusive orphanage. She has led CCT through a number of significant organisational changes, including the closure of the initial CCT orphanage in favour of a family-based care model to empower Cambodian families to escape poverty, assist institutionalised children return to families, and help orphanages transform to a family-based care model. Her first book, ‘How (NOT) to Start an Orphanage – by a woman who did’ was published in April 2016. Watch the video here

Do you sometimes have your most creative ideas while folding laundry, washing dishes or doing nothing in particular? It's because when your body goes on autopilot, your brain gets busy forming new neural connections that connect ideas and solve problems. Learn to love being bored as Manoush Zomorodi explains the connection between spacing out and creativity. watch the video here

The Italian island of Sardinia has more than six times as many centenarians as the mainland and ten times as many as North America. Why? According to psychologist Susan Pinker, it's not a sunny disposition or a low-fat, gluten-free diet that keeps the islanders healthy -- it's their emphasis on close personal relationships and face-to-face interactions. Learn more about super longevity as Pinker explains what it takes to live to 100 and beyond. View the video here

Carolyn Jones spent five years interviewing, photographing and filming nurses across America, traveling to places dealing with some of the nation's biggest public health issues. She shares personal stories of unwavering dedication in this celebration of the everyday heroes who work at the front lines of health care. watch the video here

"When we tell women that sex isn't worth the risk during pregnancy, what we're telling her is that her sexual pleasure doesn't matter ... that she in fact doesn't matter," says sex researcher Sofia Jawed-Wessel. In this eye-opening talk, Jawed-Wessel mines our views about pregnancy and pleasure to lay bare the relationship between women, sex and systems of power. Watch the video here

At a moment when the world seems to be spinning out of control, religion might feel irrelevant — or like part of the problem. But Rabbi Sharon Brous believes we can reinvent religion to meet the needs of modern life. In this impassioned talk, Brous shares four principles of a revitalized religious practice and offers faith of all kinds as a hopeful counter-narrative to the numbing realities of violence, extremism and pessimism. watch the video here

In a society obsessed with body image and marked by a fear of fat, Kelli Jean Drinkwater engages in radical body politics through art. She confronts the public's perception of bigger bodies by bringing them into spaces that were once off limits — from fashion runways to the Sydney Festival — and entices all of us to look again and rethink our biases. "Unapologetic fat bodies can blow people's minds," she says. watch the video here

"For a long time, I lived for death," says Manwar Ali, a former radical jihadist who participated in violent, armed campaigns in the Middle East and Asia in the 1980s. In this moving talk, he reflects on his experience with radicalization and makes a powerful, direct appeal to anyone drawn to Islamist groups that claim violence and brutality are noble and virtuous: let go of anger and hatred, he says, and instead cultivate your heart to see goodness, beauty and truth in others. watch the video here

Our kids are our future, and it's crucial they believe it themselves. That's why Nadia Lopez opened an academic oasis in Brownsville, Brooklyn, one of the most underserved and violent neighborhoods in New York — because she believes in every child's brilliance and capabilities. In this short, energizing talk, the founding principal of Mott Hall Bridges Academy (and a star of Humans of New York) shares how she helps her scholars envision a brighter future for themselves and their families. watch the video here

After Sarah Gray's unborn son Thomas was diagnosed with anencephaly, a terminal condition, she decided to turn her family's tragedy into an extraordinary gift and donate his organs to scientific research. In this tribute to life and discovery, she shares her journey to find meaning in loss and spreads a message of hope for other grieving families. watch the video here

When Ameera Harouda hears the sounds of bombs or shells, she heads straight towards them. "I want to be there first because these stories should be told," says Gaza's first female "fixer," a role that allows her to guide journalists into chaotic, war zone scenarios in her home country, which she still loves despite its terrible situation. Find out what motivates Harouda to give a voice to Gaza's human suffering in this unforgettable talk. watch the video here

As different as we humans are from one another, we all age along the same great sequence, and the shared patterns of our lives pass into the pages of the books we love. In this moving talk, journalist Joshua Prager explores the stages of life through quotations from Norman Mailer, Joyce Carol Oates, William Trevor and other great writers, set to visualizations by graphic designer Milton Glaser. "Books tell us who we've been, who we are, who we will be, too," Prager says. Watch the video here

Tim Urban knows that procrastination doesn't make sense, but he's never been able to shake his habit of waiting until the last minute to get things done. In this hilarious and insightful talk, Urban takes us on a journey through YouTube binges, Wikipedia rabbit holes and bouts of staring out the window — and encourages us to think harder about what we're really procrastinating on, before we run out of time. Watch a video of this talk here

We're raising our girls to be perfect, and we're raising our boys to be brave, says Reshma Saujani, the founder of Girls Who Code. Saujani has taken up the charge to socialize young girls to take risks and learn to program — two skills they need to move society forward. To truly innovate, we cannot leave behind half of our population, she says. "I need each of you to tell every young woman you know to be comfortable with imperfection." watch a video of this talk here

What keeps us happy and healthy as we go through life? If you think it's fame and money, you're not alone – but, according to psychiatrist Robert Waldinger, you're mistaken. As the director of a 75-year-old study on adult development, Waldinger has unprecedented access to data on true happiness and satisfaction. In this talk, he shares three important lessons learned from the study as well as some practical, old-as-the-hills wisdom on how to build a fulfilling, long life.

Plastic bags are essentially indestructible, yet they're used and thrown away with reckless abandon. Most end up in the ocean, where they pollute the water and harm marine life; the rest are burned in garbage piles, where they release harmful dioxins into the atmosphere. Melati and Isabel Wijsen are on a mission to stop plastic bags from suffocating their beautiful island home of Bali. Their efforts — including petitions, beach cleanups, even a hunger strike — paid off when they convinced their governor to commit to a plastic bag-free Bali by 2018. "Don't ever let anyone tell you that you're too young or you won't understand," Isabel says to other aspiring activists. "We're not telling you it's going to be easy. We're telling you it's going to be worth it."

What do you want to be when you grow up? Well, if you're not sure you want to do just one thing for the rest of your life, you're not alone. In this illuminating talk, writer and artist Emilie Wapnick describes the kind of people she calls "multipotentialites" — who have a range of interests and jobs over one lifetime. Are you one?

Around the world, women still struggle for equality in basic matters like access to education, equal pay and the right to vote. But how to enlist everyone, men and women, as allies for change? Meet Elizabeth Nyamayaro, head of UN Women’s HeForShe initiative, which has created more than 2.4 billion social media conversations about a more equal world. She invites us all to join in as allies in our shared humanity. WATCH THE VIDEO OF THIS TALK

In the fog of war, civilian casualties often go uncounted. Artist Matt Kenyon, whose recent work memorialized the names and stories of US soldiers killed in the Iraq war, decided he should create a companion monument, to the Iraqi civilians caught in the war's crossfire. Learn how he built a secret monument to place these names in the official record. WATCH A VIDEO OF THIS TALK HERE

Stacey Baker has always been obsessed with how couples meet. When she asked photographer Alec Soth to help her explore this topic, they found themselves at the world’s largest speed-dating event, held in Las Vegas on Valentine’s Day, and at the largest retirement community in Nevada — with Soth taking portraits of pairs in each locale. Between these two extremes, they unwound a beautiful through-line of how a couple goes from meeting to creating a life together. (This talk was part of a TED2015 session curated by Pop-Up Magazine: popupmagazine.com or @popupmag on Twitter.) WATCH A VIDEO OF THIS TALK HERE

In 2011, the US Armed Forces still had a ban on women in combat — but in that year, a Special Operations team of women was sent to Afghanistan to serve on the front lines, to build rapport with locals and try to help bring an end to the war. Reporter Gayle Tzemach Lemmon tells the story of this "band of sisters," an extraordinary group of women warriors who helped break a long-standing barrier to serve. WATCH A VIDEO OF THIS TALK HERE

When Jimmy Nelson traveled to Siberia to photograph the Chukchi people, elders told him: "You cannot photograph us. You have to wait, you have to wait until you get to know us, you have to wait until you understand us." In this gorgeously photo-filled talk, join Nelson's quest to understand — the world, other people, himself — by making astonishing portraits of the world's vanishing tribes and cultures. Watch a video of this talk here

"Anything that is worth pursuing is going to require us to suffer, just a little bit," says surf photographer Chris Burkard, as he explains his obsession with the coldest, choppiest, most isolated beaches on earth. With jawdropping photos and stories of places few humans have ever seen — much less surfed — he draws us into his "personal crusade against the mundane." Watch a video of this talk here

Singer-songwriter Dawn Landes tells the story of Tori Murden McClure, who dreamed of rowing across the Atlantic in a small boat — but whose dream was almost capsized by waves the size of a seven-story building. Through video, story and song, Landes imagines the mindset of a woman alone in the midst of the vast ocean. (This talk was part of a session at TED2015 guest-curated by Pop-Up Magazine: popupmagazine.com or @popupmag on Twitter.) Watch a video of this talk here

Daniel Kish has been blind since he was 13 months old, but has learned to “see” using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment and return to him, helping him to construct an understanding of the space around him. In a rousing talk, Kish demonstrates how this works and asks us to let go of our fear of the “dark unknown.” Watch a video of this talk

Ten days after 9/11, a shocking attack at a Texas mini-mart shattered the lives of two men: the victim and the attacker. In this stunning talk, Anand Giridharadas, author of "The True American," tells the story of what happened next. It's a parable about the two paths an American life can take, and a powerful call for reconciliation. Watch a video of this talk

When 27-year-old Pete Frates injured his wrist in a baseball game, he got an unexpected diagnosis: it wasn’t a broken bone, it was ALS. Better known as Lou Gehrig’s disease, ALS causes paralysis and death—there is no cure. And still, Pete saw an opportunity to drive awareness about the disease. In a brave talk, his mom Nancy Frates tells the story of how the family developed the ALS Ice Bucket Challenge and took great pleasure in seeing everyone from Justin Timberlake to Bill Gates take part. If you accepted the challenge, please take the next step: share this talk as you did your challenge video. A video of this talk

Artists Jeroen Koolhaas and Dre Urhahn create community art by painting entire neighborhoods, and involving those who live there — from the favelas of Rio to the streets of North Philadelphia. What's made their projects succeed? In this funny and inspiring talk, the artists explain their art-first approach — and the importance of a neighborhood barbecue. A video of this talk

In 2011 Ronnie Cahana suffered a severe stroke that left him with locked-in syndrome: completely paralyzed except for his eyes. While this might shatter a normal person’s mental state, Cahana found peace in “dimming down the external chatter,” and “fell in love with life and body anew.” In a somber, emotional talk, his daughter Kitra shares how she documented her father's spiritual experience, as he helped guide others even in a state of seeming helplessness. A video of this talk

Matthew O’Reilly is a veteran emergency medical technician on Long Island, New York. In this talk, O’Reilly describes what happens next when a gravely hurt patient asks him: “Am I going to die?” A video of this talk

Megan Washington is one of Australia's premier singer/songwriters. And, since childhood, she has had a stutter. In this bold and personal talk, she reveals how she copes with this speech impediment—from avoiding the letter combination “st” to tricking her brain by changing her words at the last minute to, yes, singing the things she has to say rather than speaking them. A video of this talk

In 1991, Shaka Senghor shot and killed a man. He was, he says, "a drug dealer with a quick temper and a semi-automatic pistol." Jailed for second degree murder, that could very well have been the end of the story. But it wasn't. Instead, it was the beginning of a years-long journey to redemption, one with humbling and sobering lessons for us all. A video of this talk

The parenting section of the bookstore is overwhelming—it's "a giant, candy-colored monument to our collective panic," as writer Jennifer Senior puts it. Why is parenthood filled with so much anxiety? Because the goal of modern, middle-class parents—to raise happy children—is so elusive. In this honest talk, she offers some kinder and more achievable aims. A video of this talk

Sam Berns is a Junior at Foxboro High School in Foxboro, Massachusetts, where he has achieved highest honors and is currently a percussion section leader in the high school marching band. He recently achieved the rank of Eagle Scout in the Boy Scouts of America. Sam was diagnosed with Progeria, a rare, rapid aging disease, at the age of 2. He is featured in the documentary Life According to Sam, which will premiere on HBO on October 21, 2013. A video of this talk

Maya Penn started her first company when she was 8 years old, and thinks deeply about how to be responsible both to her customers and to the planet. She shares her story -- and some animations, and some designs, and some infectious energy -- in this charming talk. A video of this talk

"In the cathedral of the wild, we get to see the best parts of ourselves reflected back to us." Boyd Varty, a wildlife activist, shares stories of animals, humans and their interrelatedness, or "ubuntu" -- defined as, "I am, because of you." And he dedicates the talk to South African leader Nelson Mandela, the human embodiment of that same great-hearted, generous spirit. A video of this talk

The one thing all humans have in common is that each of us wants to be happy, says Brother David Steindl-Rast, a monk and interfaith scholar. And happiness, he suggests, is born from gratitude. An inspiring lesson in slowing down, looking where you’re going, and above all, being grateful. A video of this talk

Amanda Bennett and her husband were passionate and full of life all throughout their lives together -- and up until the final days, too. Bennett gives a sweet yet powerful talk on why, for the loved ones of the dying, having hope for a happy ending shouldn't warrant a diagnosis of "denial." She calls for a more heroic narrative for death -- to match the ones we have in life. A video of this talk

To all appearances, Eleanor Longden was just like every other student, heading to college full of promise and without a care in the world. That was until the voices in her head started talking. Initially innocuous, these internal narrators became increasingly antagonistic and dictatorial, turning her life into a living nightmare. Diagnosed with schizophrenia, hospitalized, drugged, Longden was discarded by a system that didn't know how to help her. Longden tells the moving tale of her years-long journey back to mental health, and makes the case that it was through learning to listen to her voices that she was able to survive. A video of this talk

As a young child, Tania Luna left her home in post-Chernobyl Ukraine to take asylum in the US. And one day, on the floor of the New York homeless shelter where she and her family lived, she found a penny. She has never again felt so rich. A meditation on the bittersweet joys of childhood -- and how to hold them in mind A video of this talk

Roberto D'Angelo and Francesca Fedeli thought their baby boy Mario was healthy -- until at 10 days old, they discovered he'd had a perinatal stroke. With Mario unable to control the left side of his body, they grappled with tough questions: Would he be "normal?” Could he live a full life? The poignant story of parents facing their fears -- and how they turned them around. A video of this talk

More and more people worldwide are living in countries not considered their own. Writer Pico Iyer -- who himself has three or four “origins” -- meditates on the meaning of home, the joy of traveling and the serenity of standing still. A video of this talk

A refugee now living in the US, Joseph Kim tells the story of his life in North Korea during the famine years. He's begun to create a new life -- but he still searches for the family he lost. A video of this talk

There's no actual law against women driving in Saudi Arabia. But it's forbidden. Two years ago, Manal al-Sharif decided to encourage women to drive by doing so -- and filming herself for YouTube. Hear her story of what happened next. A video of this talk

When Joshua Prager was 19, a devastating bus accident left him a hemiplegic. He returned to Israel twenty years later to find the driver who turned his world upside down. In this mesmerizing tale of their meeting, Prager probes deep questions of nature, nurture, self-deception and destiny. A video of this talk

In the Masai community where 13-year-old Richard Turere lives, cattle are all-important. But lion attacks were growing more frequent. In this short, inspiring talk, the young inventor shares the solar-powered solution he designed to safely scare the lions away. A video of this talk

As a child growing up in North Korea, Hyeonseo Lee thought her country was "the best on the planet." It wasn't until the famine of the 90s that she began to wonder. She escaped the country at 14, to begin a life in hiding, as a refugee in China. Hers is a harrowing, personal tale of survival and hope -- and a powerful reminder of those who face constant danger, even when the border is far behind. A video of this talk

Activist and fundraiser Dan Pallotta calls out the double standard that drives our broken relationship to charities. Too many nonprofits, he says, are rewarded for how little they spend -- not for what they get done. Instead of equating frugality with morality, he asks us to start rewarding charities for their big goals and big accomplishments (even if that comes with big expenses). In this bold talk, he says: Let's change the way we think about changing the world. A video of this talk

Kakenya Ntaiya made a deal with her father: She would undergo the traditional Maasai rite of passage of female circumcision if he would let her go to high school. Ntaiya tells the fearless story of continuing on to college, and of working with her village elders to build a school for girls in her community. It’s the educational journey of one that altered the destiny of 125 young women A video of this talk

By turn hilarious and haunting, poet Shane Koyczan puts his finger on the pulse of what it's like to be young and … different. "To This Day," his spoken-word poem about bullying, captivated millions as a viral video (created, crowd-source style, by 80 animators). Here, he gives a glorious, live reprise with backstory and violin accompaniment by Hannah Epperson. A video of this talk

Ron Finley plants vegetable gardens in South Central LA -- in abandoned lots, traffic medians, along the curbs. Why? For fun, for defiance, for beauty and to offer some alternative to fast food in a community where "the drive-thrus are killing more people than the drive-bys." A video of this talk

Ethnographer Wade Davis explores hidden places in the wider world -- but in this powerful short talk he urges us to save a paradise in his backyard, Northern Canada. The Sacred Headwaters, remote and pristine, are under threat because they hide rich tar sands. With stunning photos, Davis asks a tough question: How can we balance society's need for fuels with the urge to protect such glorious wilderness? A video of this talk

There are so many tiny, beautiful, funny, tragic moments in your life -- how are you going to remember them all? Director Cesar Kuriyama shoots one second of video every day as part of an ongoing project to collect all the special bits of his life. Cesar Kuriyama has been selecting one second of video from every day of his life, and editing them together into a montage that both records his life, and forces him to re evaluate how he approaches each day.

In Libya, Zahra' Langhi was part of the "days of rage" movement that helped topple the dictator Qaddafi. But -- then what? In their first elections, Libyans tried an innovative slate of candidates, the "zipper ballot," that ensured equal representation from men and women of both sides. Yet the same gridlocked politics of dominance and exclusion won out. What Libya needs now, Langhi suggests, is collaboration, not competition; compassion, not rage.

Leslie Morgan Steiner was in “crazy love” -- that is, madly in love with a man who routinely abused her and threatened her life. Steiner tells the dark story of her relationship, correcting misconceptions many people hold about victims of domestic violence, and explaining how we can all help break the silence. A video of this talk

Reporter Janine di Giovanni has been to the worst places on Earth to bring back stories from Bosnia, Sierra Leone and most recently Syria. She tells stories of human moments within large conflicts -- and explores that shocking transition when a familiar city street becomes a bombed-out battleground. A video of this talk

Cameron Russell admits she won “a genetic lottery”: she's tall, pretty and an underwear model. But don't judge her by her looks. In this fearless talk, she takes a wry look at the industry that had her looking highly seductive at barely 16-years-old. A video of this talk

When is the last time you did absolutely nothing for 10 whole minutes? Not texting, talking or even thinking? Mindfulness expert Andy Puddicombe describes the transformative power of doing just that: Refreshing your mind for 10 minutes a day, simply by being mindful and experiencing the present moment. (No need for incense or sitting in uncomfortable positions.) A video of this talk

A long time ago in New York City, Steve Addis stood on a corner holding his 1-year-old daughter in his arms; his wife snapped a photo. The image has inspired an annual father-daughter ritual, where Addis and his daughter pose for the same picture, on the same corner, each year. Addis shares 15 treasured photographs from the series, and explores why this small, repeated ritual means so much. A video of this talk

Would you kill for a pair of Air Jordans? Lemon Andersen spins a tale of someone who did, reciting a poem by Reg E. Gaines. These verses taught Lemon that poetry could be about more than self-expression, and could sound like music when given rhythm and infused with the grit of the New York streets around him. A video of this talk

Cross-country skier Janine Shepherd hoped for an Olympic medal -- until she was hit by a truck during a training bike ride. She shares a powerful story about the human potential for recovery. Her message: you are not your body, and giving up old dreams can allow new ones to soar. A video of this talk

In her New Orleans neighborhood, artist and TED Fellow Candy Chang turned an abandoned house into a giant chalkboard asking a fill-in-the-blank question: “Before I die I want to ___.” Her neighbors' answers -- surprising, poignant, funny -- became an unexpected mirror for the community. (What's your answer?) A video of this talk

Nature’s beauty can be easily missed -- but not through Louie Schwartzberg’s lens. His stunning time-lapse photography, accompanied by powerful words from Benedictine monk Brother David Steindl-Rast, serves as a meditation on being grateful for every day. A video of this talk

David Binder is a major Broadway producer, but last summer he found himself in a small Australian neighborhood, watching locals dance and perform on their lawns -- and loving it. He shows us the new face of arts festivals, which break the boundary between audience and performer and help cities express themselves A video of this talk

Hannah Brencher's mother always wrote her letters. So when she felt herself bottom into depression after college, she did what felt natural -- she wrote love letters and left them for strangers to find. The act has become a global initiative, The World Needs More Love Letters, which rushes handwritten letters to those in need of a boost. Hannah Brencher believes in the power of pen and paper, and has started a global initiative that encourages strangers to exchange love letters A video of this talk

When he realized his wife had to choose between buying family meals and buying her monthly "supplies," Arunachalam Muruganantham vowed to help her solve the problem of the sanitary pad. His research got very very personal -- and led him to a powerful business model. (Filmed in Bangalore as part of the TED Global Talent Search.) A video of this talk

Faith Jegede tells the moving and funny story of growing up with her two brothers, both autistic -- and both extraordinary. In this talk from the TED Talent Search, she reminds us to pursue a life beyond what is normal. Writer Faith Jegede draws on her experiences growing up with two autistic brothers in order to spread awareness and understanding about this increasingly common diagnosis A video of this talk

Literature has long been fascinated with fostered, adopted and orphaned children, from Moses to Cinderella to Oliver Twist to Harry Potter. So why do many parentless children feel compelled to hide their pasts? Poet and playwright Lemn Sissay tells his own moving story. (Filmed at TEDxHousesofParliament.) A video of this talk

Diseases of the body garner sympathy, says comedian Ruby Wax -- except those of the brain. Why is that? With dazzling energy and humor, Wax, diagnosed a decade ago with clinical depression, urges us to put an end to the stigma of mental illness. A video of this talk

When Robert Gupta was caught between a career as a doctor and as a violinist, he realized his place was in the middle, with a bow in his hand and a sense of social justice in his heart. He tells a moving story of society’s marginalized and the power of music therapy, which can succeed where conventional medicine fails. A video of this talk

In her New Orleans neighborhood, artist and TED Fellow Candy Chang turned an abandoned house into a giant chalkboard asking a fill-in-the-blank question: “Before I die I want to ___.” Her neighbors' answers -- surprising, poignant, funny -- became an unexpected mirror for the community. (What's your answer?) A video of this talk

In a humorous talk with an urgent message, LZ Granderson points out the absurdity in the idea that there's a "gay lifestyle," much less a "gay agenda." (Filmed at TEDxGrandRapids.) A video of this talk

Giles Duley gave up a life of glamour and celebrity as a fashion photographer to travel the world and document the stories of the forgotten and marginalized. While on assignment in Afghanistan he stepped on a landmine, a horrific event that left him a triple amputee. In this moving talk Duley tells us stories of peoples lost and found -- including his. (Filmed at TEDxObserver.) A video of this talk

Is your school or workplace divided into "creatives" versus practical people? Yet surely, David Kelley suggests, creativity is not the domain of only a chosen few. Telling stories from his legendary design career and his own life, he offers ways to build the confidence to create... (From The Design Studio session at TED2012, guest-curated by Chee Pearlman and David Rockwell.) A video of this talk

TED Fellow Abigail Washburn wanted to be a lawyer improving US-China relations -- until she picked up a banjo. She tells a moving story of the remarkable connections she's formed touring across the United States and China while playing that banjo and singing in Chinese. A video of this talk

In 2010, technologist Tan Le took the TEDGlobal stage to demo a powerful new interface. But now, at TEDxWomen, she tells a very personal story: the story of her family -- mother, grandmother and sister -- fleeing Vietnam and building a new life. A video of this talk

Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren’t just a footnote or a pathology. At TEDxWomen, Jane Fonda asks how we can think about this new phase of our lives. A video of this talk

Alberto Cairo's clinics in Afghanistan used to close down during active fighting. Now, they stay open. At TEDxRC2 (the RC stands for Red Cross/Red Crescent), Cairo tells the powerful story of why -- and how he found humanity and dignity in the midst of war. A video of this talk

In his home of Namibia, John Kasaona is working on an innovative way to protect endangered animal species: giving nearby villagers (including former poachers) responsibility for caring for the animals. And it's working. A video of this talk

In 2003, the Palestinian village of Budrus mounted a 10-month-long nonviolent protest to stop a barrier being built across their olive groves. Did you hear about it? Didn't think so. Brazilian filmmaker Julia Bacha asks why we only pay attention to violence in the Israel-Palestine conflict -- and not to the nonviolent leaders who may one day bring peace. A video of this talk

Media and advertising companies still use the same old demographics to understand audiences, but they're becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and women users outnumber men, Blakley explains what changes are in store for the future of media. A video of this talk

In this short talk, Arianna Huffington shares a small idea that can awaken much bigger ones: the power of a good night's sleep. Instead of bragging about our sleep deficits, she urges us to shut our eyes and see the big picture: We can sleep our way to increased productivity and happiness -- and smarter decision-making. A video of this talk

In this short talk from TED U, Joachim de Posada shares a landmark experiment on delayed gratification -- and how it can predict future success. With priceless video of kids trying their hardest not to eat the marshmallow. A video of this talk

Media big shot Felix Dennis roars his fiery, funny, sometimes racy original poetry, revisiting haunting memories and hard-won battle scars from a madcap -- yet not too repentant -- life. Best enjoyed with a glass of wine. A video of this talk

Join John Hardy on a tour of the Green School, his off-the-grid school in Bali that teaches kids how to build, garden, create (and get into college). The centerpiece of campus is the spiraling Heart of School, perhaps the world's largest freestanding bamboo building. A video of this talk

In this highly personal talk from TEDMED, magician and stuntman David Blaine describes what it took to hold his breath underwater for 17 minutes -- a world record (only two minutes shorter than this entire talk!) -- and what his often death-defying work means to him. Warning: do NOT try this at home. A video of this talk

Why do people succeed? Is it because they're smart? Or are they just lucky? Neither. Analyst Richard St. John condenses years of interviews into an unmissable 3-minute slideshow on the real secrets of success. A video of this talk