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Scientists reveal how much exercise you really need to protect your heart
Getting the recommended 150 minutes of moderate-to-vigorous exercise each week may offer only modest protection against heart attacks and strokes. A large study suggests that …
A protein older than blood circulation could transform cancer immunotherapy
A protein that evolved long before the human circulatory system may help unlock stronger cancer treatments. When C3 is produced inside tumors, it blocks immune-suppressing …
This tiny gold crystal could bring quantum technology out of the deep …
Scientists have created the first quantum material that can sort and transport different quantum states of light at room temperature, potentially removing the need for …
The sun is covered in tiny whirlpools we’ve never seen before
Scientists have discovered incredibly tiny plasma whirlpools swirling across the Sun’s surface, some just 20 kilometers wide. These previously invisible vortices may twist magnetic fields …
Cutting sweet foods doesn’t curb cravings or improve health
Changing how much sweet-tasting food people eat may not change how much they crave or enjoy sweetness after all. In a six-month trial, researchers found …
Sunlight creates quantum entanglement once thought to require lasers
Scientists have generated quantum entanglement directly from sunlight, potentially offering a lower-energy alternative to the lasers normally used in quantum technology. Their outdoor experiment produced …
Teen cannabis use linked to slower memory and thinking growth
Teens who start using cannabis may experience slower growth in memory, attention, language, and processing speed. Their abilities often developed normally at first, then began …
Vitamin C may fight cancer — but not the way scientists once …
Linus Pauling was widely mocked for claiming that vitamin C could fight cancer, especially after trials using vitamin C pills showed no benefit. Researchers now …
New autism therapy shows surprising benefits even in adult mice
Blocking the glycine transporter SLC6A20 restored important brain signaling and improved social, communication, and repetitive behaviors in autism-related mouse models. The treatment also worked in …
UCLA scientists discover how to guide heat like light at room temperature
Scientists have demonstrated that heat can move through a crystal in focused, wave-like rays at room temperature instead of spreading randomly. The breakthrough could make …
Scientists tracked 12 people in Antarctica for 10 months—what happened could shape …
A ten-month Antarctic experiment found that astronauts may struggle not only with loneliness but also with spending too much time around the same people. Frequent …
Earth’s molten core suddenly reversed direction — and scientists don’t know why
Earth’s molten iron core unexpectedly reversed direction beneath the Pacific, revealing a dramatic change in the hidden engine that creates our planet’s magnetic field. Satellite …
Wearable ultrasound patch boosts REM sleep without drugs or surgery
A new wearable patch may help people reach REM sleep faster and remain there longer without medication or surgery. In a study of 28 participants, …
The key to colonizing Mars may be hidden inside asteroids
Metal-rich asteroids could one day become hardware stores for Mars, supplying the materials needed to build and repair a growing colony. A new analysis shows …
Scientists find unexpected life on Ötzi the Iceman’s 5,300-year-old body
More than 5,000 years after his death, Ötzi the Iceman is still hosting a remarkable mix of ancient and modern microorganisms. Researchers separated microbes that …
Scientists rediscover lost Megalodon fossils—and reveal a 79-foot giant
Several enormous Megalodon vertebrae thought to have been destroyed in 1989 were found sitting unnoticed on a museum shelf. Their analysis strengthens evidence that the …
Scientists discover a hidden brain shift that begins around age 50
Beginning around age 50, the brain’s memory center appears to lose many of its longtime immune cells and replace them with more inflammatory ones. This …
Major study challenges long-held fears about acetaminophen and ibuprofen use in babies
A landmark study of nearly 4,000 babies found that acetaminophen and ibuprofen were equally safe during infancy. Neither medicine was linked to eczema or bronchiolitis, …
A star’s violent death exposed a hidden supermassive black hole
A supermassive black hole has been found lurking about 30,000 light-years from the center of its galaxy—the first dormant black hole detected so far from …
Cell-inspired nanoreactor turns sunlight into hydrogen peroxide
A new hollow nanoreactor mimics living cells to make hydrogen peroxide more efficiently using visible light. Its light-trapping cavity and proton-shuttling shell could open new …
World’s most-used weedkiller disrupts honeybee brains
Glyphosate was long thought to be safe for honeybees because they lack the enzyme the chemical targets in weeds. However, researchers found that exposed bees …
Nearly half of dementia cases may be linked to risks you can …
A long-term brain study found that common risks such as smoking, high blood pressure, heart disease, and high blood lipids were strongly linked to damage …
A drug already used for osteoporosis blocked spinal damage in a new …
Genetic changes may set off a chain reaction that causes the spine’s natural shock absorbers to harden and deteriorate. Zebrafish with a faulty collagen-related gene …
Forget the sperm race: Fertilization may depend on teamwork
Millions of sperm do not always compete alone—some species send them into action as coordinated teams. A sweeping evolutionary study found that this cooperation is …
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