A liquid painted on children’s cavities in seconds stopped decay in more than half of treated teeth without drilling, but it comes with one visible trade-off

Tooth decay is the most common chronic disease in American children, affecting more than four in ten. For very young kids, treating it often means drilling, injections, or even surgery…

Oct 27, 2026 · 4 min read

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Medical Research & Innovations

Scientists estimated that about 1 in 5 colorectal cancers worldwide is linked to a common stomach germ that more than four in ten people carry

Helicobacter pylori is a stomach bacterium that more than four in ten people worldwide carry. It is a known cause of stomach…

3 min read · eGastroenterology

Medical Research & Innovations

A two-year trial found fish oil supplements did reach the brain in older adults at risk of Alzheimer’s, but the benefit millions take it for never showed up

Americans spend more than a billion dollars a year on omega-3 supplements, many hoping to keep their memory sharp. The idea is…

4 min read · eBioMedicine

Medical Research & Innovations

Scientists compared every main treatment for low testosterone in men with obesity, and only one approach improved erections

Low testosterone is common in men carrying extra weight, and it often brings tiredness, low sex drive and erection problems. Men who…

3 min read · The Journal of Sexual Medicine

Medical Research & Innovations

Scientists gave people two meals matched for calories, carbs, fat, protein and salt, and one of them made the body release far more insulin

Nutrition labels assume that a calorie is a calorie: if two meals have the same energy, carbs, fat, protein and salt, the body should treat them about the same. Researchers…

Oct 23 · 3 min read

A liquid painted on children’s cavities in seconds stopped decay in more than half of treated teeth without drilling, but it comes with one visible trade-off

Scientists estimated that about 1 in 5 colorectal cancers worldwide is linked to a common stomach germ that more than four in ten people carry

A two-year trial found fish oil supplements did reach the brain in older adults at risk of Alzheimer’s, but the benefit millions take it for never showed up

Scientists compared every main treatment for low testosterone in men with obesity, and only one approach improved erections

Scientists gave people two meals matched for calories, carbs, fat, protein and salt, and one of them made the body release far more insulin

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1 in 3 women with an autoimmune disease said a doctor had blamed their symptoms on their mind, and for some diseases it was more than half

A study of 899 gun homicides in the Chicago area found that deaths on greener streets were less likely to be shootings. But in the poorest neighborhoods, being near a park pointed the other way.

Researchers posed as patients and called in-network mental health providers, and fewer than 1 in 4 calls that reached someone got an appointment

A study of 18 fossils from a South African cave found that Homo erectus, likely our direct ancestor, lived there 2 million years ago. At that site, it was outnumbered 10 to 1 by another human species.

Scientists found that night owls were 70% more likely than morning people to stop working early because of poor health, and their jobs did not explain it

Scientists found that a plastic chemical sold as the safer replacement for phthalates showed up in over half of pregnant women and was linked to smaller babies

A study of 21,797 Swedish twins found that teens who spent 6+ hours a day gaming or online on weekdays had over 3 times the rate of later depression or anxiety. Then researchers compared each teen with their own twin.

Scientists found that men who never married were about two years older biologically than married men, but women who never married showed no such gap

A study that followed 1,266 adults for 35 years found that cannabis users had more broken, restless sleep on wrist monitors. Yet the same people rated their sleep no worse than non-users did.