(本戸) クラーブ 律子

Vitamin C won’t prevent most colds, but it may do one small thing
Thu, 27 Aug 2026 06:38:30 EDT

The belief that huge doses of vitamin C can ward off colds was popularized more than 50 years ago by Nobel Prize winner Linus Pauling. Since then, larger studies have found that vitamin C does not prevent most people from catching a cold, although regularly taking it may make severe symptoms slightly shorter or milder.

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Smart nanoparticles light up brain cancer and destroy what surgery misses
Thu, 27 Aug 2026 01:52:48 EDT

Scientists created smart nanoparticles that can both illuminate hidden glioblastoma cells during surgery and destroy microscopic cancer left behind afterward. In mice, the treatment prevented recurrence and led to 100% survival at 60 days, though it has not yet been tested in humans.

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Scientists may have found a shortcut to calorie restriction’s anti-aging benefits
Wed, 26 Aug 2026 09:00:53 EDT

Moderate calorie restriction lowered an immune protein called C3 that appears to help drive chronic inflammation as the body ages. Blocking the same protein reduced age related inflammation in mice, raising the possibility that future treatments could mimic some benefits of calorie restriction without severe dieting.

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Eating more ultra-processed foods may raise prostate cancer risk by 30%
Thu, 27 Aug 2026 07:52:35 EDT

Ultra-processed foods make up a huge share of the American diet, and new research suggests they may carry another serious health risk for men. In a nationally representative study of more than 17,000 U.S. men, those who ate more ultra-processed foods, including soft drinks, packaged snacks, cereals, and processed meats, had roughly 24% to 31% higher risks of prostate cancer after accounting for factors such as age, smoking, race and ethnicity, and poverty status.

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Scientists discover a brain “brake” that can shut down chronic pain
Thu, 27 Aug 2026 00:46:20 EDT

Researchers discovered a brain-based “brake” that can shut down chronic nerve pain in mice by calming an overactive pain circuit. Targeting this system more precisely could one day lead to powerful pain relief without affecting opioid receptors throughout the entire body.

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Common medications may change your gut for years
Mon, 24 Aug 2026 09:14:50 EDT

Common medications may reshape the gut microbiome long after the last dose is taken. In a study of more than 2,500 people, researchers found lasting microbial changes linked not only to antibiotics, but also to antidepressants, beta-blockers, acid-reducing drugs, and benzodiazepines. Some effects were still detectable years later, suggesting past medication use may strongly influence the gut bacteria people carry today.

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Supercharged “natural killer” cells could be a powerful new cancer weapon
Tue, 25 Aug 2026 08:56:22 EDT

Researchers have found a way to supercharge natural killer cells, powerful immune cells that can attack cancer, so they can penetrate solid tumors and keep fighting once inside. In mice, these specially prepared tissue-resident cells slowed the growth of several tumors, including melanoma and head and neck cancers, and worked even better when paired with the antibody drug cetuximab.

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Turmeric compound may protect blood vessels from diabetes damage
Wed, 26 Aug 2026 06:49:14 EDT

A compound found in turmeric may help protect blood vessels from some of the damage caused by Type 1 diabetes. In rats, curcumin reduced inflammation, improved cellular signaling, and restored vascular health to levels resembling those of nondiabetic animals. The results hint at a possible new way to reduce the long-term cardiovascular risks of diabetes, but human trials are still needed.

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What you eat before age 2 may affect your health 70 years later
Wed, 26 Aug 2026 07:30:35 EDT

Britain’s postwar sugar rationing created a rare natural experiment that let researchers examine how early sugar exposure might affect health decades later. People who experienced more rationing during their first 1,000 days had lower rates of several cancers and showed signs of slower biological aging. They were also still eating less sugar and maintaining healthier diets around age 50.

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Bird flu is spreading. Your backyard feeder could make it worse
Mon, 24 Aug 2026 08:49:08 EDT

Backyard bird feeders could become unexpected hotspots for H5N1 as Australia’s bird flu outbreak spreads, bringing species together in ways that rarely occur naturally. Experts say stopping feeding is safest, while smaller amounts of food, no hand-feeding, and careful cleaning can reduce the danger.

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