2017年12月9日 星期六

The brain benefits of deep sleep

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TED
This week on TED.com
December 9, 2017

Dan Gartenberg: The brain benefits of deep sleep -- and how to get more of it

06:37 minutes · Filmed Jun 2017 · Posted Dec 2017 · TED Residency

There's nothing quite like a good night's sleep. What if technology could help us get more out of it? Dan Gartenberg is working on tech that stimulates deep sleep, the stage that (among other wonderful things) might help us consolidate our memories and form our personalities. Find out more about this vital stage of sleep -- and its potential benefits on our health, memory and ability to learn.

Playlist of the week

Talks for your inner child (9 talks)

Fun doesn’t stop at adulthood. Reconnect with your sense of wonder and imagination in these playful talks. Watch »

Total run time 1:58:52

Catch up on this week's new TED Talks

Justin Baldoni is done trying to be "man enough" according to society's harsh definitions. So he's starting a dialogue about redefining masculinity -- to figure out ways to be not just good men but good humans. In a warm, personal talk, the actor and filmmaker shares his effort to reconcile who he is with who the world tells him a man should be. And he has a challenge for men: "See if you can use the same qualities that you feel make you a man to go deeper," Baldoni says. "Your strength, your bravery, your toughness: Are you brave enough to be vulnerable? Are you strong enough to be sensitive? Are you confident enough to listen?" Watch »

If you're having surgery, you want the best surgical team to collaborate on your case, no matter where they might be. Surgeon and entrepreneur Nadine Hachach-Haram is developing a new system that helps surgeons operate together (and train one another on new techniques) from remote locations using low-cost augmented reality tools. Watch the system in action as she joins a surgeon in Minnesota in performing a knee surgery live on her laptop from the TED stage in New Orleans. As she says: "Through simple, everyday devices that we take for granted, we can do miraculous things." (This talk contains images of surgery.) Watch »

What's the secret to making media that people love and share? Join BuzzFeed's publisher, Dao Nguyen, for a glimpse at how her team creates their tempting quizzes, lists and videos. Learn more about their surprisingly sophisticated research that helps writers and video-makers understand what people are really looking for when they browse online, and see how audiences use these simple stories to connect with each other on a deep and personal level. Watch »

There's something amazing growing in the city of Detroit: delicious, healthy, fresh food. Fearless farmer Devita Davison explains how the features of Detroit's decay actually make it an ideal spot for urban agriculture. Join her for a walk through neighborhoods in transformation as she shares stories of opportunity and hope. "These aren't plots of land where we're just growing tomatoes and carrots," Davison says. "We're building social cohesion too." Watch »

Read more on ideas.ted.com

Science: A scientist explores the mysteries of the gut-brain connection >>
What do our guts tell our brains? A lot more than we think

We humans: 9 smart rules for getting the most out of meetings >>
Ray Dalio brings wisdom and common sense to the conference table

Business: The three steps of building trust in a new business idea >>
Rachel Botsman explains the "trust stack" that powers our sharing economy

You need this: How to exit a conversation without being a jerk >>
A conversation experts breaks down this essential life skill
 
 

Quote of the Week

“

I've been pretending to be a man that I'm not my entire life. I've been pretending to be strong when I felt weak, confident when I felt insecure and tough when really I was hurting. And I can tell you right now that it is exhausting."

Justin Baldoni
Why I'm done trying to be "man enough"

get ready for TED Talks India: Nayi Soch

If you're in India: Tune in to Star Plus on Sunday night, Dec. 10, at 7pm to watch the first episode of TED Talks India: Nayi Soch -- a program of amazing TED Talks and new ideas in Hindi, hosted by the King of Bollywood, Shah Rukh Khan!
Want to watch later? Find all the TED Talks from the show, free to watch and share, on TED.com/India starting Monday Dec. 11.
Learn more about TED Talks India: Nayi Soch »

 

2017年12月2日 星期六

The science of cells that never get old

Meet the Nobel winner who discovered how we age. Open in your browser
TED
This week on TED.com
December 2, 2017

Elizabeth Blackburn: The science of cells that never get old

18:46 minutes · Filmed Apr 2017 · Posted Nov 2017 · TED2017

What makes our bodies age ... our skin wrinkle, our hair turn white, our immune systems weaken? Biologist Elizabeth Blackburn shares a Nobel Prize for her work finding out the answer, with the discovery of telomerase: an enzyme that replenishes the caps at the end of chromosomes, which break down when cells divide. Learn more about Blackburn's groundbreaking research -- including how we might have more control over aging than we think.

Playlist of the week

Slow down! Enjoy life

The world is moving fast. These talks will inspire you to take time to process it all. Watch »

7 TED Talks • Total run time 1:33:43

Catch up on this week's new TED Talks

Luvvie Ajayi isn't afraid to speak her mind, to be the one dissenting voice in a crowd -- and neither should you. "Your silence serves no one," says the writer, activist and self-proclaimed professional troublemaker. In this bright, uplifting talk, Ajayi shares three questions to ask yourself if you're teetering on the edge of speaking up or quieting down -- and encourages all of us to get a little more comfortable with being uncomfortable. Watch »

Fresh food free of chemicals and pesticides is hard to come by in China: in 2016, the Chinese government revealed half a million food safety violations in just nine months. Which is why TED Fellow Matilda Ho launched China's first online farmers market, with a zero-tolerance test toward pesticides, antibiotics and hormones in food. She shares how she's growing her healthy business from the ground up. Watch »

Conventional wisdom says that to win an election, you need to play to your constituencies' lowest, most divisive instincts. But as a candidate for mayor of Tulsa, Oklahoma, G.T. Bynum decided to skip the smear campaigns, tell voters what he wanted to accomplish and give them ways to measure his success -- and he won the election. In a hopeful, funny talk, Bynum shares how he's tackling his city's most pressing issues and asks us all to set aside philosophical disagreements and focus on the aspirations that unite us. Watch »

Natsai Audrey Chieza is a designer on a mission -- to reduce pollution in the fashion industry while creating amazing new things to wear. In her lab, she noticed that the bacteria Streptomyces coelicolor makes a striking red-purple pigment, and now she's using it to develop bold, color-fast fabric dye that cuts down on water waste and chemical runoff, compared with traditional dyes. We're not going to build the future with fossil fuels, Chieza says -- we're going to build it with biology. Watch »

Educator and entrepreneur Sebastian Thrun wants to use AI to free humanity of repetitive work and unleash our creativity. In an inspiring conversation with TED Curator Chris Anderson, Thrun discusses the progress of deep learning, why we shouldn't fear runaway AI and how society will be better off if dull, tedious work is done with the help of machines. "Only 1 percent of interesting things have been invented yet," Thrun says. "I believe all of us are insanely creative." Watch »

How do you deliver things fast, in places with no roads? Well, Keller Rinaudo and his startup, Zipline, have created the world's first drone delivery system to operate at national scale, transporting blood and plasma to remote health clinics in East Africa with a fleet of electric autonomous aircraft. Find out how Rinaudo and his team are working to transform health care logistics throughout the world -- and inspiring the next generation of engineers along the way. Watch »

Read more on ideas.ted.com

Economics: Who doesn't love a discount? One problem: They're irrational
Dan Ariely breaks down how sale prices lead us to make bad choices

Education: The surprising benefits of helping prisoners get law degrees
A project helps people return to society ready to contribute and help others

Art: The power of showing a human face when you feel overlooked
The artist JR has inspired a worldwide movement of faces and places


 

Quote of the Week

“

Being yourself can be a revolutionary act."

Luvvie Ajayi
Get comfortable with being uncomfortable

ted radio hour: Transparency

Sometimes, being truthful can be uncomfortable -- even risky. But can radical honesty and openness change things for the better? This hour, TED speakers Ray Dalio, Trevor Timm and more take transparency all the way to its limit.

Listen now on Apple Podcasts, NPR or your favorite podcast platform -- or listen through the free TED App for Android. 

 

 

2017年11月26日 星期日

Activism needs introverts

You can help craft a better world. Open in your browser
TED
This week on TED.com
November 26, 2017

Sarah Corbett: Activism needs introverts

13:57 minutes · Filmed Nov 2016 · Posted Nov 2017 · TEDxYouth@Bath

Almost everyone has a cause they love and want to support, but for the introverts among us, the traditional forms of activism -- the marches, the protests, the door-to-door canvassing -- can be really intimidating. Take it from Sarah Corbett, an activist and self-proclaimed introvert. She introduces us to "craftivism," a quieter form of activism that uses handicrafts in clever ways to help people think deeply about the issues they're facing. Who says an embroidered handkerchief can't change the world?

Playlist of the week

The power of asking

As these talks reveal: Some things are more within your grasp than you may think ... especially if you ask. Watch »

4 TED Talks • Total run time 48:11

This week's new TED Talks

In this spectacular rant, marketing prof Scott Galloway breaks down the increasing power of Amazon, Apple, Facebook and Google. How did these four companies come to infiltrate our lives so completely? You'll hear insights and eye-opening stats about their dominance and motivation -- and what happens when a society prizes shareholder value over everything else. Followed by a thoughtful Q&A with TED Curator Chris Anderson. (Note: This talk contains graphic language.) Watch »

Across the world, the "informal economy" -- made up of small shops and stands, skilled craftspeople and day laborers -- is the invisible engine that keeps the economy running. It's tempting to think of these workers as tax-dodgers, even criminals -- but Niti Bhan, who studies informal markets in Africa, makes the case that this booming segment of the economy is legitimate and worthy of investment. "These are the fertile seeds of businesses and enterprises," Bhan says. "Can we start by recognizing these skills and occupations?" Watch »

We all know that when we make decisions in large groups, they don't always go right -- and sometimes they go very wrong. How can groups make good decisions? With his colleague Dan Ariely, neuroscientist Mariano Sigman has been inquiring into how we interact to reach decisions -- and performing experiments with live crowds to find out. In this fun, fact-filled explainer video, he shares some intriguing early results on people can think better together. Watch »

Leah Chase's New Orleans restaurant Dooky Chase changed the course of American history over gumbo and fried chicken. During the civil rights movement, it was a place where white and black people came together, where activists planned protests and where the police entered but did not disturb, and it continues to operate in the same spirit today. In conversation with TEDWomen Curator Pat Mitchell, the 94-year old Queen of Creole Cuisine shares wisdom from a lifetime of speaking up, building relationships -- and cooking. Watch »

Read more on ideas.ted.com

Wisdom: Brilliant life advice from seniors >>
Hard-won wisdom from long, well-lived lives

We humans: Would democracy work better on the jury system?
Read more about intriguing research into group decision-making

Science: Could these three moons help us find life beyond Earth?
Three moons in our solar system have oceans -- and maybe the conditions for life

Quote of the Week

“

We've personified these companies, and just as when you're really angry over every little thing someone does in your life and relationships, you've got to ask yourself, 'What's going on here? Why are we so disappointed in technology?' I believe it's because the ratio of 1 percent pursuit of shareholder value and 99 percent the betterment of humanity that technology used to play has been flipped, and now we're totally focused on shareholder value instead of humanity."

Scott Galloway
How Amazon, Apple, Facebook and Google manipulate our emotions

ted radio hour: big data revolution

Once invisible details of our lives can now be tracked and turned into data. Will this make life easier or more complicated? This hour, TED speakers imagine how Big Data will reshape our world. Get the TED Radio Hour on Apple Podcasts, directly through the TED Android App, or wherever you get your podcasts.