Why dieting doesn't usually work • 2013 TED

Category: Health

In the US, 80% of girls have been on a diet by the time they're 10 years old. In this honest, raw talk, neuroscientist Sandra Aamodt uses her personal story to frame an important lesson about how our brains manage our bodies, as she explores the science behind why dieting not only doesn't work, but is likely to do more harm than good. She suggests ideas for how to live a less diet-obsessed life, intuitively.

TED • 2002 - 2017 • 8 episodes •

What makes us feel good about our work?

What motivates us to work? Contrary to conventional wisdom, it isn't just money. But it's not exactly joy either. It seems that most of us thrive by making constant progress and feeling a sense of purpose. Behavioral economist Dan Ariely presents two eye-opening experiments that reveal our unexpected and nuanced attitudes toward meaning in our work.

Lifehack

Why Humans Run the World

70,000 years ago humans were insignificant animals. The most important thing to know about prehistoric humans is that they were unimportant. Their impact on the world was very small, less than that of jellyfish, woodpeckers or bumblebees.

People

The nerd's guide to learning everything online

Some of us learn best in the classroom, and some of us ... well, we don't. But we still love to learn, to find out new things about the world and challenge our minds. We just need to find the right place to do it, and the right community to learn with. In this charming talk, author John Green shares the world of learning he found in online video.

2012 • Lifehack

Do Schools Kill Creativity (Ken Robinson)

Sir Ken Robinson makes an entertaining and profoundly moving case for creating an education system that nurtures (rather than undermines) creativity.

2006 • Creativity

A thrilling look at the first 21 days of a bee’s life

We’ve heard that bees are disappearing. But what is making bee colonies so vulnerable? Photographer Anand Varma raised bees in his backyard — in front of a camera — to get an up close view. This project, for National Geographic, gives a lyrical glimpse into a bee hive — and reveals one of the biggest threats to its health, a mite that preys on baby bees in the first 21 days of life.

2015 • Nature

Why dieting doesn't usually work

In the US, 80% of girls have been on a diet by the time they're 10 years old. In this honest, raw talk, neuroscientist Sandra Aamodt uses her personal story to frame an important lesson about how our brains manage our bodies, as she explores the science behind why dieting not only doesn't work, but is likely to do more harm than good. She suggests ideas for how to live a less diet-obsessed life, intuitively.

2013 • Health

Richard Dawkins: Militant atheism

Richard Dawkins urges all atheists to openly state their position — and to fight the incursion of the church into politics and science. A fiery, funny, powerful talk.

2002 • People

Your brain hallucinates your conscious reality

Right now, billions of neurons in your brain are working together to generate a conscious experience -- and not just any conscious experience, your experience of the world around you and of yourself within it. How does this happen? According to neuroscientist Anil Seth, we're all hallucinating all the time; when we agree about our hallucinations, we call it "reality." Join Seth for a delightfully disorienting talk that may leave you questioning the very nature of your existence.

2017 • Brain

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Nightmares and Sleepwalkers

Michael gets trapped in his own nightmares. Phil collapses whenever he has a strong emotion. Nancy sleepwalks her way into danger almost every night. Can the sleep gurus help?

1/3The Secrets of Sleep • 2017 • Health

The Benefits of a Good Night's Sleep

It’s 4am, and the big test is in 8 hours. You’ve been studying for days, but you still don’t feel ready. Should you drink another cup of coffee and spend the next few hours cramming? Or should you go to sleep? Shai Marcu defends the latter option, showing how sleep restructures your brain in a way that’s crucial for how our memory works.

TED-EdHealth

How a wound heals itself

Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the epidermis and into the dermis to investigate this regenerative response.

TED-EdHealth

How Much Water Should I Drink a Day?

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How much water should I drink a day?” SciShow has the answer!

Health

Rapidly Evolving Human with Spencer Wells

Renowned geneticist and author Spencer Wells reveals how changes in our genetic code have fueled major changes in our appearance and capabilities over time, and why scientists believe we're continuing to rapidly evolve today. By understanding these changes, we are better prepared for the future.

2018 • Health

Cannabis: Miracle Medicine or Dangerous Drug

At an extraordinary moment in the history of one of the world’s oldest and most controversial drugs, Horizon investigates the very latest medical and scientific research into the effects of cannabis on the brain and the body. Medicinal cannabis became legal in the UK on 1 November 2018, but it is still shrouded in controversy. A&E doctor Javid Abdelmoneim wants to find out whether it will help or harm patients. Javid meets the young epilepsy patient responsible for changing the law around medicinal cannabis in the UK and sees the remarkable effects it has on his condition. He visits a medicinal cannabis farm in Denmark to learn how a company known for growing the recreational drug are now producing medicinal cannabis to be exported all over Europe. He travels to Israel, to find out why they have been using cannabis as a medicine for over 20 years and meets the scientists studying the safety and effectiveness of cannabis in treating pain. And he meets the so-called godfather of cannabis, who at 88 years old is still an active research scientist and considered the world’s leading cannabis expert. In the UK Javid encounters the first British patient to be prescribed intoxicating herbal cannabis to treat her chronic condition. He meets psychiatrists at King’s College London who reveal their new study linking cannabis more strongly than ever to alarming mental health problems. And he takes part in a groundbreaking trial looking at the effects of the different chemicals in cannabis on the brain.

Horizon • 2019 • Health