Underneath the surface, there lies a vast network of natural and manmade waterways. Cave diver Jill Heinerth shares her adventures through our planet's plumbing and the ways it secretly connects us.

Why do so many people experience brain tingles when watching ASMR videos? Physiologist Craig Richard shares the science behind the "Autonomous Sensory Meridian Response," and how it calms the mind.

Irma Olguin wants to bring the tech industry to cities like her hometown, Fresno. She believes building a support system for tech workers will strengthen communities and revitalize undervalued cities.

From unionizing to striking to quitting, employees are taking power into their own hands. Labor organizer Jess Kutch explores the effectiveness of collective bargaining to affect change.

What if we could rescue endangered species before they disappear? Biotech entrepreneur Ryan Phelan explores how genetic engineering tools can save species that would otherwise go extinct.

Psychologist Phillip Atiba Goff analyzes data on how racial bias affects police behavior. He shares how communities can rethink their public safety systems, and ultimately better respond to crises.

Amal, a 9-year-old Syrian refugee puppet, has been walking across Europe to raise visibility and empathy for the plight of refugees. Theater director Amir Nizar Zuabi spoke with TED Radio Hour.

Amal is a nine-year-old Syrian refugee. She's also a giant puppet. Theater director Amir Nizar Zuabi discusses how art can deliver a new message on the plight of refugees in his project "The Walk."

Cardiologist Sandeep Jauhar explains a case where deep grief caused takotsubo cardiomyopathy—also called "broken heart syndrome." He examines the connection emotions have with our most vital organ.

Forager and TikTok influencer Alexis Nikole Nelson shares how the great outdoors has offered her both an endless array of food options and an outlet to reconnect with her food and her culture.

Public places don't always fully meet the needs of a community. Shari Davis explains how participatory budgeting can give us all a voice in creating safer and more equitable public spaces.

Whales are more than just beautiful creatures—they play a vital role in the ocean's ecosystem. Marine biologist Asha de Vos explains why protecting whales is crucial for protecting the entire sea.

Catherine Mohr shares the story of a scuba diving trip gone wrong, where getting stabbed by a sea urchin transformed her relationship with the ocean... and ultimately led her to the love of her life.

Hollywood director Jon M. Chu got his start splicing VHS tapes of home videos, but it took him two decades — and acceptance of his cultural identity — to realize what stories he really wanted to tell.

For Camille A. Brown, choreography unlocked a new way to understand her power as a dancer. She explains how social dance — and its origins — have allowed her to celebrate her creative identity.