The Optimist Daily's Weekly Roundup

The Optimist Daily
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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.

  1. 3d ago

    The science of soccer-stress, salsa dancing for depression, and why summer slips away

    Watching a tense soccer match nearly doubles cardiac event risk, and cortisol could start rising fourteen hours before kickoff. With Spain just taking the World Cup, a fair portion of the world's population has basically been running a biological experiment on itself. Arielle and Karissa also get into the neurological reason summer keeps slipping away, an Oxford trial where eight weeks of salsa classes outperformed existing tools for depression and anxiety, and a brush swab for oral cancer that returns results in under an hour — no scalpel needed. Stay tuned til the end for a wonderful Emissary Shout-Out that will brighten your day! Transcript link: https://www.optimistdaily.com/?p=1422640  If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    The science of soccer-stress, salsa dancing for depression, and why summer slips away

  2. Jul 17

    Wildfire satellites, Seine city cooling, and parenting securely attached kids

    Greece just launched the world's first satellite constellation built specifically for wildfire detection. It can spot a fire measuring only a few feet across, a huge improvement on conventional satellites, which start flagging fires when they're already the size of a cruise ship. Ten solutions this week with Arielle and Karissa, including the first gallery in history dedicated entirely to women artists and five French food principles that have nothing to do with tracking macros. Transcript link: https://www.optimistdaily.com/?p=1422600 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    Wildfire satellites, Seine city cooling, and parenting securely attached kids

  3. Jul 10

    500 years of the soccer cleat, a world-first burn treatment, and green hydrogen in California

    Every player at this year's World Cup is wearing the end result of 500 years of iteration on a single piece of equipment. It started with factory workers hammering hardware store nails into their boots for traction on wet British turf. Ten solutions this week with Arielle and Karissa: the world's first exome therapy for burn patients, a California canal that generates electricity while cutting water evaporation by 70 percent, a copper compound that goes after Alzheimer's in a completely novel way, and what will truly help you when you feel… "off." Special shout-out to Karissa's friend Amy! (Listen to this episode to find out why.) If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to podcast@optimistdaily.com. Transcript link: https://www.optimistdaily.com/?p=1422551 Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    500 years of the soccer cleat, a world-first burn treatment, and green hydrogen in California

  4. Jul 2

    Coffee waste as fuel, Nepal same-sex marriage rights, and understanding heat domes

    Stanford researchers took cartilage from patients already getting knee replacements (about as degraded as joint tissue gets) and discovered how it could regenerate itself. The cells weren't replaced or reprogrammed; they just shifted back toward a younger pattern of behavior, which is the part that feels almost too good to be true. Alongside that, Arielle and Karissa cover the two heat domes expected to merge over the US around July 4th and what extreme heat actually does to the body, Nepal becoming one of the most LGBTQ-inclusive countries in South Asia after a binding Supreme Court ruling, and why London's 40 percent drop in air pollution deaths is both genuinely good news and more complicated than it sounds. Stay tuned til the end for another inspiring Emissary Shout-Out! Transcript link: https://www.optimistdaily.com/?p=1422514 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    Coffee waste as fuel, Nepal same-sex marriage rights, and understanding heat domes

  5. Jun 26

    Gig worker rights, cervical cancer wins, and a hopeful take on human cooperation

    A study of more than 100,000 people across 125 countries found that people cooperate far more than they assume other people will. Hopeful news to receive in a world that feels so divided. This week Arielle and Karissa also cover gig worker rights getting their first-ever international vote, Pakistan scrapping its period tax after two young lawyers made it too hard to ignore, a farmer in rural Africa whose income jumped 50 percent because of a solar fridge, and a few lifestyle tips you'll want to try yourself this summer. And stay tuned til the end for another inspiring Emissary Shout-Out! Transcript link: https://www.optimistdaily.com/?p=1422484 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    Gig worker rights, cervical cancer wins, and a hopeful take on human cooperation

  6. Jun 19

    (Guest Interview) Hope can rise: two sisters in Gaza turning rubble into building blocks | Earth Prize 2026

    Tala and Farah Mousa received thousands of messages after they won the Earth Prize. "You gave us hope we had completely lost," people wrote. "You showed us we can be seen." They were sheltering in a tent when those messages came in. This episode is about what it takes to build something: a real, physical method for turning rubble into building blocks, while living inside the rubble. Arielle speaks to the teenaged sisters from Gaza about the idea that came from a textbook the morning after their home was bombed, the competition that brought their work to the world, and what they want for their community, their generation, and the ones who come after them. Connect with Build Hope Palestine: Follow Build Hope Palestine on Instagram: @build.hope The Earth Prize website: theearthprize.org Further reading: The Optimist Daily articles on Earth Prize 2026 regional winners Part I and Part II Learn about the Earth Prize 2026 global winner Transcript link: https://www.optimistdaily.com/?p=1422438 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    (Guest Interview) Hope can rise: two sisters in Gaza turning rubble into building blocks | Earth Prize 2026

  7. Jun 12

    From a 340-year slavery law finally repealed to pancakes for cigarette butts: 10 solutions this week

    A high-risk breast cancer diagnosis used to mean one thing: chemotherapy. A large UK trial just found that 68 percent of those patients could skip it safely, based on a genomic test that already exists and is already in use. Arielle and Karissa also get into the pigeon liver finding that stumped scientists for over a century, a California city that voted to permanently ban data centers, and France formally repealing a law that had been sitting on the books since 1685. Stay tuned until the end for this week's Emissary Shout Out! Transcript link: https://www.optimistdaily.com/?p=1422400 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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/?lsc=41ef528d Theme and all original music by Marvin Lanes

    From a 340-year slavery law finally repealed to pancakes for cigarette butts: 10 solutions this week

  8. Jun 5

    Pancreatic cancer cracked, hepatitis B cleared, and wild mice who run for joy

    An oncologist cried at her desk when she read these latest trial results. Researchers put exercise wheels in empty fields and sand dunes, and wild mice found them and ran, unprompted, for no reward. A new drug just cleared hepatitis B from the body entirely for one in five patients. Not suppressed. Cleared. Arielle and Karissa also get into a 55-year study proving that banning toxic forever chemicals actually works, the surprising reason zebra striping cuts hangovers, and why Sweden's new screen time guidelines are aimed at parents, not kids. Transcript link: https://www.optimistdaily.com/?p=1422347 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly 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:// Theme and all original music by Marvin Lanes

    Pancreatic cancer cracked, hepatitis B cleared, and wild mice who run for joy
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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.

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