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Total number of posts: 23815
How pigeons find their way home: the answer is a magnetic compass in the liver
BY THE OPTIMIST DAILY EDITORIAL TEAM For decades, researchers looked for the seat of magnetoreception in all the obvious places: the eyes, the inner ear, the beak. A study just published in Science points somewhere none of them expected. The organ doing the magnetic navigation work in homing Read More...
France finally votes to strike the Code Noir from its books, its last slavery law
BY THE OPTIMIST DAILY EDITORIAL TEAM There is something disquieting about the idea that a law governing slavery could still exist on the books in 2026. Not as an enforced law. Not as a policy. Just sitting there, formally unrepealed, in the archive of French legal history. That was the status Read More...
The parenting habit that builds lifelong closeness with adult children
BY THE OPTIMIST DAILY EDITORIAL TEAM Picture two parents, both devoted. Both called every Sunday. Both showed up for birthdays, sent money when things got hard, and made every visible effort. One of them has an adult child who calls with the hard stuff: the job that fell apart, the relationship Read More...
Breast cancer genomic test could spare millions from chemotherapy
BY THE OPTIMIST DAILY EDITORIAL TEAM For decades, high clinical risk and chemotherapy arrived together as a package deal in early breast cancer. A trial presented at the American Society of Clinical Oncology meeting in Chicago on May 30, 2026, is pulling them apart. The OPTIMA trial enrolled Read More...
Podcast Transcript June 5th, 2026— Pancreatic cancer cracked, hepatitis B cleared, and wild mice who run for joy
Episode Description: 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 Read More...
Morning vs. night shower: which is better according to experts
BY THE OPTIMIST DAILY EDITORIAL TEAM Chances are you’ve probably already had this conversation with someone. Maybe more than once. Morning shower people and night shower people tend to hold their positions, and nobody really changes anyone else’s mind. But when you actually ask the experts, Read More...
How parents' phone habits shape their children's, according to new research
BY THE OPTIMIST DAILY EDITORIAL TEAM For years, the conversation about children and screens has been aimed squarely at children. How much time, what content, and at what age? Sweden's public health agency has now turned the question around. This past Monday, the agency issued new guidelines Read More...
Why hamsters run on wheels, according to 30 years of research
BY THE OPTIMIST DAILY EDITORIAL TEAM In 2014, researchers placed exercise wheels in two natural outdoor settings and left them there. Wild mice found the wheels and ran on them, sometimes for up to 18 minutes at a stretch, with no training and no food reward. The running continued long after all Read More...
The urban cooling gap: why planting design matters as much as canopy count
BY THE OPTIMIST DAILY EDITORIAL TEAM Street trees reduce urban heat. That much is established. What’s less settled is whether they’re enough on their own, or whether the way a city plants matters as much as how much it plants. New field research from Melbourne, Munich, and Hong Kong, led Read More...
Zebra striping can cut hangovers, with one important catch
BY THE OPTIMIST DAILY EDITORIAL TEAM Zebra striping, the practice of alternating each alcoholic drink with a non-alcoholic one, is catching on: 34 percent of UK adults reported trying it in 2025. The strategy does help. Just not quite in the way people think it does. The actual mechanism: total Read More...