Anyone from anywhere can give a TED Talk. This hour, we're joined by curator Cloe Shasha Brooks, who leads a massive search each year to discover brilliant speakers who often fly under the radar.

Mindfulness expert and Headspace co-founder Andy Puddicombe guides listeners through a meditative reflection on how breath can bring us closer together.

Each day, we breathe about 22,000 times--and all that time we smell. Scent historian Caro Verbeek recreates scents of the past. She says, just like music and art, smell is a part of our heritage.

Mindfulness expert and Headspace co-founder Andy Puddicombe guides listeners through a meditative reflection on breath and impermanence.

Dinosaurs ruled Earth for 180 million years, but to dominate they had to outcompete a slew of other animals. Paleontologist Emma Schachner thinks their lungs could have been the competitive advantage

Journalist Beth Gardiner and activist Yvette Arellano explain the long-term health effects of air pollution. Yvette lives in a Houston neighborhood near the largest petrochemical complex in the U.S.

Mindfulness expert and Headspace co-founder Andy Puddicombe guides listeners through a meditative reflection on appreciating breath.

In 2002, freediver Tanya Streeter completed a record-breaking dive of 525 feet—in one breath. She reflects on the obstacles she faced, and the experience of pushing her body and lungs to the limit.