Low vitamin B12 is linked to heart disease. Supplements tell a different story
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 A village beyond Sardinia's blue zone shows striking survival among older womenA village beyond Sardinia's blue zone shows striking survival among older women
 
Researchers studying Bolotana, Sardinia, found that women had exceptionally high estimated late-life survival during 2021–2025, with their probability of surviving from age 70 to 100 exceeding regional and national averages by more than threefold. Earlier demographic estimates showed a much smaller survival advantage, prompting the authors to classify Bolotana as a candidate longevity blue zone that requires further investigation.
 
 
 Low vitamin B12 is linked to heart disease. Supplements tell a different storyLow vitamin B12 is linked to heart disease. Supplements tell a different story
 
A narrative review published in Nutrition Journal examines how vitamin B12 deficiency may contribute to cardiovascular disease through elevated homocysteine, endothelial dysfunction, oxidative stress and altered methylation.
 
   Two healthy diets stood out in a study of more than 7,000 adultsTwo healthy diets stood out in a study of more than 7,000 adults
 
In a cross-sectional analysis of 7,256 adults from the Maastricht Study, researchers found that greater adherence to the DASH and Dutch Healthy Diet patterns was associated with higher very-low-frequency (VLF) heart rate variability power, particularly among participants not taking beta-blockers.
 
   The type of fiber you eat shapes how gut bacteria feed and work togetherThe type of fiber you eat shapes how gut bacteria feed and work together
 
A 2021 review examined how the chemical structure and physical properties of dietary fiber influence which gut bacteria can break it down and how microbial species compete and cooperate during fermentation. The authors described how these interactions contribute to short-chain fatty acid production, while emphasizing the need for further research involving intact plant foods to understand their implications for human health.
 
   Menopause reshapes women's careers, from brain fog to changing prioritiesMenopause reshapes women's careers, from brain fog to changing priorities
 
In a qualitative analysis of 130 Reddit posts, researchers examined how perimenopause and menopause affected women's career sustainability, finding that brain fog, fatigue, mood changes, and anxiety were associated with reduced confidence, workplace performance concerns, and threats to professional identity.
 
 Eating walnuts was linked to higher IgG levels, but what does that mean for health?
 
Eating walnuts was linked to higher IgG levels, but what does that mean for health?A two-year randomized trial involving 474 older adults found that daily consumption of 30–60 grams of walnuts was associated with 6% higher total serum IgG concentrations compared with a control diet, with an 11% difference observed among US participants. Walnut consumption did not significantly affect IgM, MDA-LDL or MDA-LDL-specific antibodies, and whether the modest IgG difference has meaningful cardiovascular benefits remains unknown.
 
 
 From simple ovulation treatments to IVF, how doctors choose the right approach
 
From simple ovulation treatments to IVF, how doctors choose the right approachA clinical review on female infertility discusses causes, IVF options, and complications, equipping clinicians to improve patient care and treatment outcomes.
 
 
 Could GLP-1 drugs help women with PCOS beyond weight loss?
 
Could GLP-1 drugs help women with PCOS beyond weight loss?A scoping review of 28 studies suggests that GLP-1 receptor agonists may improve androgen levels and menstrual function in women with polycystic ovary syndrome (PCOS), alongside their established metabolic benefits. Evidence for improved ovulation, fertility, and pregnancy outcomes remains limited, and the researchers could not determine whether reproductive benefits result directly from the drugs or from weight loss and improved metabolic health.
 
 
 Health warnings on vapes changed people's choices, but there was a catch
 
Health warnings on vapes changed people's choices, but there was a catchIn a Canadian discrete choice experiment involving 2,961 e-cigarette users and nonusers, researchers examined how health warnings, nicotine strength, plain packaging, and prices influenced preferences for vaping products, heated tobacco, and cigarettes.
 
 
 Why do we turn to comfort food? A survey of 1,203 adults offers clues
 
Why do we turn to comfort food? A survey of 1,203 adults offers cluesA cross-sectional study of 1,203 UK adults found that stronger expectations of positive emotions from high-fat, salt and/or sugar foods were weakly associated with poorer diet quality and more frequent comfort eating. Negative emotional expectations about many foods also tracked with comfort eating, but the study did not establish whether eating these foods actually changed mood.
 
 
 Younger adults in America's famous Blue Zone are eating differently
 
Younger adults in America's famous Blue Zone are eating differentlyA cross-sectional study of 615 adults in the Loma Linda Blue Zone area and surrounding communities found that vegetarian diets were more common among older adults and Seventh-day Adventists, with vegetarians also reporting significantly lower BMI than non-vegetarians.
 
 
 Extreme heat and cold hit some people far harder, and it's not just about illness
 
Extreme heat and cold hit some people far harder, and it's not just about illnessResearchers analysing 285,444 adults in Finland and the UK found that excess mortality associated with extreme heat and cold was more than tenfold higher among people with both pre-existing medical conditions and socioeconomic disadvantage than among those with neither or only one vulnerability.
 
 
 Testosterone shows no evidence of improving menopausal brain fog
 
Testosterone shows no evidence of improving menopausal brain fogPublished in Reproduction and Fertility, the review examined five existing studies of women aged 41 to 65 to understand whether testosterone treatment improves thinking and memory in women during and after menopause.
 
 
 Pregnancy night shifts associated with higher risk of developmental abnormalities in children
 
Pregnancy night shifts associated with higher risk of developmental abnormalities in childrenWorking night shifts during pregnancy is linked to a heightened risk of neurodevelopmental abnormalities detected by screening in the child by the age of 4, finds research published online in Occupational & Environmental Medicine.
 
 
 Study identifies common mechanism behind widespread cancer mutations
 
Study identifies common mechanism behind widespread cancer mutationsA family of mutations seen in about 20% of human cancers drives malignancy by changing the accessibility of genes to a particular regulatory protein, according to a study by Weill Cornell Medicine investigators.
 
 
 Can broccoli sprouts help with insulin resistance? New review offers clues
 
Can broccoli sprouts help with insulin resistance? New review offers cluesA review published in the British Journal of Nutrition examines how carotenoids and bioactive compounds in Brassicaceae microgreens may influence obesity, insulin resistance, and type 2 diabetes through metabolic and inflammatory pathways. Small human trials involving broccoli sprouts have reported improvements in selected metabolic markers, but larger, longer-term studies are needed to establish their clinical benefits.
 
 
 New medical framework redefines women’s heart health starting at puberty
 
New medical framework redefines women’s heart health starting at pubertyThe American Heart Association, American Academy of Pediatrics, American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine released landmark publications that redefine women's heart health, starting at puberty.
 
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