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 simple: DHA, the main omega-3 in fish oil,…

Oct 25, 2026 · 4 min read

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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…

3 min read · Nature Metabolism

Medical Research & Innovations

A study of 461,682 Americans followed for 19 years found ultra-processed food overall was not linked to colorectal cancer, but one kind of it was

Ultra-processed food now makes up more than half of what American adults eat, and it has become the favorite villain of modern…

4 min read · PLOS Medicine

Medical Research & Innovations

A cheap drug some women are given to stop breast milk after childbirth was linked to about 70% less breast cancer in the years that followed

After giving birth, some women are offered a single pill to stop their breast milk, usually after a pregnancy loss or when breastfeeding is not possible. The drug, cabergoline, has…

Oct 21 · 4 min read

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

A study of 461,682 Americans followed for 19 years found ultra-processed food overall was not linked to colorectal cancer, but one kind of it was

A cheap drug some women are given to stop breast milk after childbirth was linked to about 70% less breast cancer in the years that followed

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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.

A study of 1.17 million hospital patients found that for-profit hospitals had about 11 more deaths per 1,000 medical admissions than nonprofits. 71% of their nurses said their workloads were unsafe.

A study of 1 million women found that HRT pills were linked to more blood clots at every dose, while patches and gels were not. Yet 88% of the women on HRT in the study were taking pills.