The Optimist Daily’s Weekly Roundup
With Arielle Tiangco and Karissa Garcia
Do you like the stories from around the world that recognize and celebrate the people and events making a positive change? Tune in to The Optimist Daily’s Weekly Roundup, where our solutions-focused stories continue, and hear behind-the-scenes discussions from the people bringing you the news.
Episodes
October 31, 2025
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 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, and PeaceCYCLE — both proving compassion can fuel sustainability and hope.
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Transcript link: https://www.optimistdaily.com/?p=1420998
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 17:41 min
October 24, 2025
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 reimagines book access with her “LitBox” vending machine. Together, they remind us that healing and storytelling thrive when communities care.
Discover more about LitBox at www.litboxbooks.com or follow @LitBoxBooks on X for the latest.
Transcript link: https://www.optimistdaily.com/?p=1420951
Want to be part of the Optimism Movement? Become an Emissary.
Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 19:00 min
October 17, 2025
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 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 of our cities and our health.
Want to be part of the Optimism Movement? Become an Emissary.
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Transcript link: https://www.optimistdaily.com/?p=1420895
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 14:24 min
October 10, 2025
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. 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 future of health. A thoughtful conversation about stewardship, survival, and what it means to care across generations.
Want to be part of the Optimism Movement? Become an Emissary.
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Transcript link: https://www.optimistdaily.com/?p=1420855
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 21:32 min
October 03, 2025
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 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 of California school lunches. It’s a speedy, feel-good listen packed with health and sustainability wins.
Want to be part of the Optimism Movement? Become an Emissary.
Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.
Transcript link: https://www.optimistdaily.com/?p=1420817
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 04:04 min
September 26, 2025
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 for stories to expert insights on why you don’t need one “best friend” to feel fulfilled, the episode highlights practical ways to strengthen belonging.
Click here to nominate your Local Changemaker of 2025. Every nomination enters you to win a cozy Optimist Daily mug!
Want to be part of the Optimism Movement? Become an Emissary.
Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.
Transcript link: https://www.optimistdaily.com/?p=1420787
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 20:40 min
September 19, 2025
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 just be the best chapter of your life (spoiler: less stress, more joy), how one woman’s loss became a movement for survivors, and what we can all learn from the quiet power of sisterhood and resilience. Whether you’re healing from heartbreak or aging like fine wine, there’s something here to lift your spirits.
If you are in the United States and experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-SAFE (7233) for 24/7 confidential support.
In India, you can reach the national women’s helpline at 181 or contact the Aks Foundation crisis line at +91 87930 88814 and aksfoundation.org.
If you are outside the US or India, visit www.befrienders.org to find international hotlines and support resources in your country.
Click here to nominate your Local Changemaker of 2025. Every nomination enters you to win a cozy Optimist Daily mug!
Want to be part of the Optimism Movement? Become an Emissary.
Follow us on Instagram, X, and Blue Sky.
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 22:35 min
September 12, 2025
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 your natural walking speed—offer surprising insights into longevity and independence as we age. Then, journey to the Netherlands, where architects are transforming old wind turbines into stylish, eco-friendly tiny homes. Along the way, they reflect on wellness, COVID recovery, and why optimism fuels progress. Tune in for science, sustainability, and a dash of everyday inspiration.
Click here to nominate your Local Changemaker of 2025. Every nomination enters you to win a cozy Optimist Daily mug!
Want to be part of the Optimism Movement? Become an Emissary.
Follow us on Instagram, X, and Blue Sky.
Transcript link: https://www.optimistdaily.com/?p=1420711
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 20:45 min
September 05, 2025
Celebrating Local Changemakers: Nominate Your Community Heroes of 2025
This week, Arielle spotlights the return of our Local Changemakers Series! From food justice in Olympia to climate activism and dog rescue in Thailand, last year’s nominees inspired us with their creativity and compassion. Now we’re inviting you to nominate the people and projects making a difference in your own backyard.
Plus, every nomination enters you to win a cozy Optimist Daily mug! Tune in to hear inspiring stories from last year and learn how to share yours.
Click here to nominate your Local Changemaker of 2025.
Want to be part of the Optimism Movement? Become an Emissary.
Follow us on Instagram, X, and Blue Sky.
Transcript link: https://www.optimistdaily.com/?p=1420674
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 03:59 min
August 29, 2025
How Adults Can Capture Back-to-School Joy, and How Rocky Mountain National Park is Expanding Access
This week Arielle and Karissa are exploring solutions both personal and global—from Rocky Mountain National Park’s inspiring accessibility upgrades to playful ways adults can tap into back-to-school energy. They also take time for an I’m an Optimist, But… reflection on women’s safety, a reminder that optimism doesn’t ignore hard truths. Tune in for thoughtful stories, practical tips, and a big dose of hope.
Want to be part of the Optimism Movement? Become an Emissary.
Follow us on Instagram, X, and Blue Sky.
Transcript link: https://www.optimistdaily.com/?p=1420650
The Optimist Daily is a project of the World Business Academy.
Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://
PLAY 23:30 min