TED Talks Daily

Know you should establish clear limits at work but not sure how to do it? Here are a few strategies from relationship therapist and author Nedra Glover Tawwab that can help you feel more empowered and less overwhelmed, both on and off the job.

The emergence of data-driven mass surveillance "is threatening to turn privacy into a relic of the 20th century," says the anonymous YouTube creator known as Ordinary Things. Meanwhile, state-funded troll farms are spreading disinformation and curating chaos on platforms meant to connect us and revolutionize the way we live. Ordinary Things gives an enlightening account of the internet's strengths and weaknesses, warning that the fight for a free internet is a fight for our collective future.

What comes to mind when you think about the most fun moments of your life? Science journalist Catherine Price asked thousands of people across the world this question, and their answers led her to a new definition of "true" fun: a special confluence of playfulness, connection and flow. Hear her thoughts on why having fun is good for your mental and physical health and how to identify the tell-tale signs of "fake" fun -- as well as actionable tips for identifying what brings you joy. (This conversation, hosted by TED science curator David Biello, was part of an exclusive TED Membership event. Visit ted.com/membership to become a TED Member.)

Collaboration in the workplace is more important than ever -- but it's making us less productive in some ways. Here's what collaboration pioneer Rob Cross says is driving us to take on way too much -- and how we can reclaim our time and our peace of mind.

What does an in-flight meal look like when you're traveling to Mars? Designer Phnam Bagley envisions a future where astronauts have nourishing, flavorful food reminiscent of home -- a giant leap from their current staple of "goop-in-a-bag." Learn more about her team's gourmet creations for galactic travel and how these innovations can improve life here on Earth.

Video games naturally tap into the way we learn: they focus our attention and track our progress as we head toward a clear goal. Kris Alexander, a professor of video game design and passionate gamer himself, thinks the same elements should be used in traditional education to cater to different learning styles and engage students across the world, both in-person and online.

Only four percent of construction workers are female -- that's totally unacceptable, but it's also a huge opportunity both for women and for the trades, says youth educator and builder Emily Pilloton-Lam. She makes the case for putting power (and power tools) into the hands of young women and gender-expansive youth, dreaming of inclusive construction sites and daring to ask: What if women built the world they want to see? (Plus, Pilloton-Lam dazzles with a live demo of her own woodworking skills ... while giving the talk.)

Why aren't more people investing in Africa's green energy? Environmental researcher Rebekah Shirley outlines the continent's immense potential for renewable power and calls for collaborative international investment -- and partnership -- in Africa's climate future. "Let's cut past the talk and focus on unleashing the avalanche of a clean energy future that Africa is ready to deliver," says Shirley.

Meet the fantastically colorful and astonishingly adaptable sea slugs that found a way to photosynthesize (or create energy from sunlight) like plants. Diving deep into these often overlooked creatures, invertebrate zoologist Michael Middlebrooks introduces the solar-powered slugs that lost their shells -- but gained the ability to directly harness the power of the sun.

Stuck in an unfulfilling or stagnant job? To achieve a smooth departure without burning bridges, try this three-step exit strategy from career coach Gala Jackson. She'll help you move on to your next position with courage, confidence and clarity.

When programmer Tiffani Ashley Bell learned that thousands of people in Detroit were facing water shutoffs because they couldn't afford to pay their bills, she decided to take action -- in the simplest, most obvious way possible. It's an inspiring story of how one person with tenacity and an idea can create monumental change -- and a demonstration that each of us can find our own way to help the world, even if it means starting without all the answers.

Some days, it's hard to be optimistic. But cynicism -- the idea that people are inherently selfish, greedy and dishonest -- is making humanity lonelier and more divided, says psychologist Jamil Zaki. Presenting fascinating research on cooperation, empathy and trust, Zaki makes the scientific case for optimism and shows us how to break out of the cynicism trap.

As a proud and passionate restaurant owner, Vincent Yeow Lim takes after his father and grandfather in the family tradition of Chinese cooking. Lim makes a delicious case to elevate the reputation of Chinese food, sharing why the comforting flavors behind iconic dishes -- like a hearty helping of perfectly made fried rice -- come from a long line of love, nostalgia and mastery that deserves to be recognized.

Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study of the physics behind how bugs take care of business and invites us to be more curious about the seemingly mundane.

We negotiate all the time at work -- for raises, promotions, time off -- and we usually go into it like it's a battle. But it's not about dominating, says organizational psychologist Ruchi Sinha. It's about crafting a relationship, understanding your needs and the other person's. Her three key steps will help you master this essential skill.