September 17, 2025 4 min read The Past Three Summers Were the Three Hottest on Record Climate-fueled heat has caused thousands of excess deaths over the past three summers, which were the three hottest on record By Andrea Thompson edited by Dean Visser Amanda Montañez; Source: Copernicus Climate Change Service (data) The Northern Hemisphere’s summers…
“My secret is that I never get off the sofa,” said no centenarian, ever. But it is worth noting that the world’s oldest people rarely mention punishing fitness regimes, either. Instead, centenarians tend to report a lifetime of regular, moderate exercise, such as walking, farming and gardening. This exact prescription doesn’t fit well into many…
This article is part of “Innovations In: Alzheimer’s Disease” an editorially independent special report that was produced with financial support from Eisai. One of neurologist Anelyssa D’Abreu’s least favorite tasks is giving her patients a dreaded diagnosis: early-stage Alzheimer’s disease. But it’s not quite as bad as it used to be. Today when they ask,…
One of the standard questions put to centenarians is: “What’s your secret?” The answers often revolve around food. For Maria Branyas Morera, who was the world’s oldest person when she died last year aged 117, it was eating three yogurts a day. Jeanne Calment, officially the oldest person to have ever lived (though that has…
Anne-Laure Le Cunff was something of a wild child. As a teenager, she repeatedly disabled the school fire alarm to sneak smoke breaks and helped launch a magazine filled with her teachers’ fictional love lives. Later, as a young adult studying neuroscience, Le Cunff would spend hours researching complex topics but struggled to complete simple…
September 16, 2025 3 min read October 2025: Science History from 50, 100 and 150 Years Ago Charming quarks; the first Batman signal By Mark Fischetti 1975, Advent of Tomography: “Medicine is making the internal structures of the body far more accessible by noninvasive procedures. One, called reconstruction from projections, is coming into service. A…
Planning for your period might be difficult if long covid has made it last longer SeventyFour Images / Alamy Long covid seems to disrupt the menstrual cycle, making periods heavier and longer. This may come about because of lingering covid-19-related complications that alter levels of hormones or cause inflammation. Why long covid occurs is unclear…
Traveling across state lines in search of an available shot. Scrambling to get a doctor’s prescription. Showing up for a pharmacy vaccination appointment only to be denied. Those are some of the stories people have been describing to journalists and on social media as they share whether or not they could get the latest COVID-19…
September 16, 2025 3 min read Weird ‘Time Crystals’ Are Made Visible at Last Time crystals, a state of matter once thought physically impossible, could soon be on a banknote By Elizabeth Gibney & Nature magazine A time crystal as seen under a microscope. A time crystal is a form of matter that shows continuous,…
How well-supported are the claims made by AI tools? Oscar Wong/Getty Images Generative AI tools, and the deep research agents and search engines powered by them, frequently make unsupported and biased claims that aren’t backed up by the sources they cite. That’s according to an analysis which found that about one-third of answers provided by…
