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Road traffic noise linked to immediate heart and blood vessel stress

Rss Feed - Wed, 02/25/2026 - 19:19
A new study published in the journal Cardiovascular Research shows that a single night of road traffic noise, at levels that are typical of those living in a city, causes stress to the heart and blood vessels.

Long-term cola intake weakens immune cell counts in controlled rat study

Rss Feed - Wed, 02/25/2026 - 19:17
Replacing drinking water entirely with sugar-sweetened or sugar-free cola for eight weeks altered gut microbiota composition and immune-related indices in rats, despite no changes in body weight or blood glucose. Both beverages were associated with leukocyte reductions and organ-related biochemical shifts, with sugar-sweetened cola more strongly linked to renal markers and diet cola to elevated liver enzymes.

Having “hasslers” in your network linked to faster aging and poorer health

Rss Feed - Wed, 02/25/2026 - 18:46
Researchers analyzed a state-representative US sample to examine whether negative social ties, termed “hasslers,” are associated with epigenetic age acceleration and faster biological aging. Each additional hassler was linked to roughly nine months higher biological age and a 1.5% faster pace of aging, with particularly strong associations for mental health outcomes.

Could a rare gene variant help reduce smoking? New study suggests it might

Rss Feed - Wed, 02/25/2026 - 18:08
An exome-wide association study of nearly 38,000 smokers from the Mexico City Prospective Study identified rare coding variants in CHRNB3 that are associated with substantially fewer cigarettes smoked per day. Cross-ancestry analyses in European and East Asian datasets support a role for the β3 nicotinic receptor subunit in modulating smoking intensity.

Superagers show greater neuron growth linked to strong memory

Rss Feed - Wed, 02/25/2026 - 11:36
Brains of older adults with super healthy cognition grow more new neurons than those of their peers, according to a study from UIC, Northwestern University and the University of Washington.

Early-life immune system differences drive childhood eczema risk

Rss Feed - Wed, 02/25/2026 - 11:33
A team of researchers at the Icahn School of Medicine at Mount Sinai, Weill Cornell Medicine, and other institutions have uncovered a key biological explanation for why eczema so often starts in childhood.

Chemical signatures in blood could help detect gallbladder cancer

Rss Feed - Wed, 02/25/2026 - 11:22
Researchers at Tezpur University in Assam, India, working with scientists at the University of Illinois Urbana-Champaign, have identified distinct chemical signatures in blood that could help detect gallbladder cancer earlier.

No evidence connects tick bites to chronic health problems

Rss Feed - Wed, 02/25/2026 - 10:05
When researchers studied Norwegians who thought tick bites caused their chronic health problems, they found no objective evidence linking the symptoms to ticks.

Unexpected behavior observed during interactions between immune cells and dying cells

Rss Feed - Wed, 02/25/2026 - 09:58
Over the years, cell biology has built a detailed picture of how cells compartmentalize their internal functions. Central to this organization is the nucleus, which houses the genetic material and is separated from the cytoplasm by a robust nuclear envelope.

Opioids offer limited short-term relief for acute pain

Rss Feed - Wed, 02/25/2026 - 08:59
The world's largest review of opioid pain relievers prescribed for acute pain found these medicines provide only small, short-term relief for some acute conditions and are ineffective for some others.

Muscles retain molecular memory of repeated inactivity

Rss Feed - Wed, 02/25/2026 - 08:44
Muscle loss, or atrophy, due to inactivity is common after illness, injury, hospitalization or falls, and becomes increasingly frequent with aging.

Study reveals gaps in life-saving antenatal treatments for premature babies

Rss Feed - Wed, 02/25/2026 - 08:33
A new global analysis of two antenatal treatments that reduce the risk of cerebral palsy and respiratory complications in premature babies reveals significant international variation in implementation.

TRAP laws reduce access to obstetricians nationwide

Rss Feed - Wed, 02/25/2026 - 08:29
A study in Health Economics uncovers a major unintended consequence of abortion‐related regulations: a measurable decline in the availability of obstetricians and gynecologists.

Gaps persist in evidence-based care for preterm infants

Rss Feed - Wed, 02/25/2026 - 08:13
Prenatal magnesium sulfate and steroids can reduce the risks of cerebral palsy and respiratory complications in preterm infants.

Small RNA molecules can accurately predict survival in older adults

Rss Feed - Wed, 02/25/2026 - 08:02
As people age, it becomes harder to know who is on track for healthy years ahead and who may be at higher risk for serious decline.

Easy-to-use blood test score can help identify alcohol-related fatty liver disease

Rss Feed - Wed, 02/25/2026 - 07:51
Researchers at University of California San Diego School of Medicine have developed a new, easy-to-use blood test score that can help identify when fatty liver disease is being driven by excessive alcohol use, an important distinction that often goes unrecognized in routine care.

Nearly 6 in 10 women in the U.S. may have cardiovascular disease in the next 25 years

Rss Feed - Wed, 02/25/2026 - 07:21
Driven by rising rates in high blood pressure, nearly 6 in 10 women in the U.S. will have some type of cardiovascular disease (CVD) in the next 25 years, according to a new scientific statement published today in Circulation, the peer-reviewed, flagship journal of the American Heart Association, a global force changing the future of health for all.

High-fat ketogenic diet improves exercise response in diabetic mice

Rss Feed - Wed, 02/25/2026 - 07:13
To be healthy, conventional wisdom tells us to exercise and limit fatty foods. Exercise helps us lose weight and build muscle.

Social deprivation tied to less diverse gut microbiome

Rss Feed - Wed, 02/25/2026 - 07:08
Living in a poorer neighborhood in the UK could impact the make-up of your gut microbiome, potentially leading to worse health.

Element Biosciences introduces VITARI™, redefining what high-throughput sequencing makes possible

Rss Feed - Wed, 02/25/2026 - 06:33
Element Biosciences Inc. today announced VITARI, the first ever high-throughput benchtop sequencing system capable of delivering a high-quality whole genome at $100.

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