
The science of saving lives: new breakthroughs in immunity and allergy prevention
In this week's episode, Arielle and Karissa gab about two groundbreaking medical solutions changing lives: a one-time gene therapy that helps children with ADA-SCID develop healthy immune systems, and...
31 Okt 202517min

From chemo care to creative flair: two stories changing how we heal and create
This week, Arielle and Karissa talk about two powerful wins for compassion and creativity. New York's new law makes scalp cooling treatments more accessible for cancer patients, while a D.C. author re...
24 Okt 202519min

Can concrete power cities? Can aspirin prevent cancer? The science says maybe.
This week, Arielle and Karissa spotlight two game-changing breakthroughs: MIT's new battery concrete, which could turn buildings into energy storage devices, and a Swedish study showing that low-dose ...
17 Okt 202514min

Why women live longer (and what men can learn from it) + the world's first Indigenous-led ocean reserve
In this episode, Karissa and Arielle begin in the Pacific Islands, where Indigenous leaders are creating the world's first ocean sanctuary designed to preserve migratory routes across national borders...
10 Okt 202521min

Bite-Sized Roundup: Cold Plunges, Kimchi, and Global Wins for the Planet
Arielle opens the episode with a quick update—she's feeling under the weather, so Karissa is taking the reins this week. In this bite-sized round-up, Karissa highlights some of the most intriguing sto...
3 Okt 20254min

Underground libraries, rethinking BFFs, and other uplifting solutions
In this week's Optimist Daily Roundup, Arielle and Karissa explore solutions that inspire connection and community. From Warsaw's new underground library that encourages commuters to swap scrolling fo...
26 Sep 202520min

Hope after heartbreak: divorce support in India and 7 uplifting benefits of getting older
This week, Karissa and Arielle dive into stories of transformation. From India's empowering divorce retreats to science-backed reasons to embrace aging with open arms. They discuss why aging might jus...
19 Sep 202522min

5 simple fitness tests for longevity + turning wind turbines into tiny homes
In this week's roundup, Arielle and Karissa explore two powerful solutions shaping the future of health and sustainability. First, discover how five simple fitness tests—like balancing on one leg or y...
12 Sep 202520min




















