This week, Arielle and Karissa dive into two very different but deeply connected stories about what it means to truly support healing. First, we unpack new research on what people going through cancer actually find helpful during the holidays, and why practical support often means more than cozy socks and inspirational mugs. Then they travel […]

Australia just became the first country to ban social media accounts for kids under 16… but will it actually keep them safer online? In this episode, Arielle and Karissa unpack the data that pushed lawmakers to act, the huge loopholes critics are worried about, and the real trade-offs for teens, parents, and platforms. They also […]

This week, Karissa and Arielle tackle two big, very real-world solutions: how to gracefully ask friends and family if they’re sick before a holiday hangout, and why the U.S. finally introducing its first female crash test dummy is a major win for road safety and equity. They unpack expert advice on setting health boundaries without […]

In this special Thanksgiving mini-episode of The Optimist Daily’s Weekly Roundup, Karissa and Arielle press pause on the usual headlines to say thank you. They share what they are personally grateful for this year, celebrate the Emissaries and listeners who keep solutions journalism alive, and invite anyone who isn’t already to support the work through […]

In this week’s episode of The Optimist Daily’s Weekly Roundup, Arielle and Karissa return from a fall break with a fresh wave of uplifting stories, diving right into two standout solutions of the week. First: the “bike bus” phenomenon turning school mornings into joyful, community-powered parades across the world. Next: surprising new research revealing how […]

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 new pediatric guidelines that could drastically reduce peanut allergies. Plus, meet this week’s inspiring Local Changemakers — the Oregon senior dog rescue, Silver Linings Rescue Ranch, […]

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 reimagines book access with her “LitBox” vending machine. Together, they remind us that healing and storytelling thrive when communities care. Discover more about LitBox […]

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 aspirin may significantly reduce the risk of colorectal cancer recurrence in certain patients. We break down the science behind both discoveries—and how they might shape the future […]

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. Then we turn to the science behind why women tend to live longer than men—and what those findings can teach us about resilience, biology, and the […]

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 stories from Optimist Daily, including science-backed benefits of kimchi, fresh debates around cold plunges, and why ultra-processed foods may be on their way out […]