Original broadcast date: March 4, 2016. What makes an idea, a brand, or a behavior catch fire? This hour, TED speakers explore the mysteries behind the many things we spread: laughter and sadness, imagination, viruses and viral ideas. Guests include neuroscientist Sophie Scott, entrepreneur Seth Godin, philanthropist Bill Gates, social scientist Nicholas Christakis, and historian Yuval Harari.

How Things Spread

Saving money and investing like a pro is a lot easier than most people realize. In this podcast, we learn the secrets of success from some of the world's best investors, behavioral economists and other experts.

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Investing

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Shopping

Life Kit is excited to bring you more episodes but we're making some changes to how we organize things. Starting in the new year, this three-part guide will disappear, but all of the episodes will still be available — they are just moving to our main Life Kit feed. Search your podcast app for Life Kit from NPR and subscribe so you never miss an episode.

Special Announcement From Life Kit

Based on your feedback, we've created new ways to listen to Life Kit. If you never want to miss an episode, subscribe to Life Kit: All Guides. We also divided our guides by subject — health, money and parenting - and more to come in the future — so you can subscribe to only the topics you want to learn about.

Who should get to keep secrets, and who should demand to know them? In this hour, TED speakers talk about the damage secrets can do, and the shifting roles we play when we keep, or share them. In a special updated interview, Global Witness co-founder Charmian Gooch explains how secrecy and corruption have changed in the five years since she gave her TED talk. Other guests from the original 2015 episode include PostSecret founder Frank Warren, equality advocate Ash Beckham, and journalist Glenn Greenwald.

Keeping Secrets

Original broadcast date: July 29, 2016. Failure can be devastating, but it can also make us stronger and smarter. This week, TED speakers explore how failure clears the way for success, in our everyday work, and our innermost lives. Guests include entrepreneur Astro Teller, economist Tim Harford, author Casey Gerald, and writer Lidia Yuknavitch.

Failure Is An Option

What does it take to change the world for the better? This hour, TED speakers explore ideas on activism—what motivates it, why it matters, and how each of us can make a difference. Guests include civil rights activist Ruby Sales, labor leader and civil rights activist Dolores Huerta, author Jeremy Heimans, "craftivist" Sarah Corbett, and designer and futurist Angela Oguntala.

How Things Spread

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