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US health officials knowingly relied on flawed vaccine safety algorithm

US health officials knowingly relied on a compromised algorithm to detect signals of harm from mRNA covid-19 vaccines and silenced efforts to fix it, finds an investigation published by The BMJ today.

17 Sep 2026

Innate immune system variations determine vaccine side effects

Redness and pain at the injection site, fever, fatigue or headaches: vaccines can cause side effects, but their frequency and severity vary considerably from person to person.

17 Sep 2026

Some mice showed signs of stress resilience before the stress even began

Researchers found that mice later classified as resilient showed stronger coordination between neuronal OFF-periods and slow-wave activity in the prelimbic cortex even before social stress. After social defeat, resilient mice also showed a distinct reorganization of neuronal silence during NREM sleep, linking local sleep dynamics with behavioral resilience.

17 Sep 2026

Experts call for eating-disorder screening before GLP-1 treatment

An international multidisciplinary panel developed consensus-based recommendations for GLP-1 receptor agonist use in people with eating disorders, calling for screening, individualized monitoring, patient education, and further research into safety and potential therapeutic effects. The experts cautioned that current evidence remains limited and inconsistent, particularly outside binge eating disorder, and identified major gaps in understanding the risk of new or recurrent eating disorders during treatment.

16 Sep 2026

Your walking pattern may reveal more about anxiety and depression than you think

Researchers used smartphone and wearable accelerometers to examine how everyday movement patterns relate to anxiety and depression symptoms in middle-aged adults. Phone-derived gait states differed with daily symptom scores, while lower wrist movement was linked to greater anxiety in a small subsample, supporting further study of passive movement sensing for mental health monitoring.

16 Sep 2026

Study identifies neural signature of pure awareness during meditation

What happens in the brain when thoughts, perceptions and other everyday mental activity become very quiet, while we remain awake and aware?

16 Sep 2026

Bulimia nervosa linked to structural differences in brain regions

Researchers at the Icahn School of Medicine at Mount Sinai found that individuals with bulimia nervosa have structural differences in brain regions involved in reward and motivation, as well as social and sensory processing, and that more frequent binge eating is associated with more widespread differences in brain structure, according to research published today in JAMA Psychiatry.

16 Sep 2026

Fermented dairy was linked to lower mortality, but the pattern shifted at higher intakes

Analysis of 37,366 US adults found that fermented dairy consumption was associated with lower all-cause and cardiovascular mortality, with consumers showing adjusted hazards 18% and 20% lower, respectively, than non-consumers. Dose-response analyses indicated that the inverse association was concentrated at intakes below about 150 grams per day, while the observational study could not establish causality.

16 Sep 2026

One brain implant could give people with paralysis a more expressive way to communicate

Researchers showed that a single high-density ECoG implant could decode attempted speech and upper-body gestures in parallel in people with severe paralysis, allowing two participants to control a personalized full-body avatar. Training the decoders on both isolated and concurrent behaviors improved performance across contexts and reduced false activations, offering proof-of-concept evidence for more expressive multimodal BCIs.

16 Sep 2026

Nighttime coughing could be due to air pollution levels, research suggests

Has your partner ever woken you up at night with their coughing? Has your coughing ever woken them up? New research suggests it could be due to air pollution levels in your area, even if those levels are low.

15 Sep 2026

Adolescent cannabis use disorder diagnoses rise after legalization

New diagnoses of cannabis use disorder (CUD) among adolescents in Northern California began climbing after recreational cannabis was legalized in California in 2016, reversing a steady decline in the three years prior, according to a new study published in the journal Addiction.

15 Sep 2026

A study of more than 21,000 adults found an unusual link between psilocybin and diet

Using data from more than 21,800 adults in two UK birth cohorts, researchers found that lifetime psilocybin and LSD use was associated with stronger pro-environmental attitudes and a greater likelihood of following a vegetarian diet, with psilocybin showing the clearer dietary pattern. Mediation analyses suggested that environmental attitudes statistically accounted for the psilocybin-vegetarianism association and part of the association with lower red meat consumption, but the observational design cannot establish causation.

15 Sep 2026

Your voice could add something aging blood tests and scans miss

Researchers found that a standardized 30-second voice recording could predict chronological age with mean absolute errors of 3.95 years in females and 4.41 years in males. The resulting Voice Age measure also captured physiological information partly distinct from molecular, imaging, sleep, and lifestyle-based aging clocks, supporting its potential as a functional aging biomarker.

15 Sep 2026

Like your tea or coffee very hot? A study of nearly 1 million adults found a striking cancer link

In pooled prospective data from 977,282 UK adults, preferring tea or coffee “very hot” was associated with more than threefold higher risk of esophageal squamous cell carcinoma compared with preferring drinks “warm,” while drink temperature showed no material association with adenocarcinoma risk. Consuming six or more hot drinks daily was independently associated with higher squamous cell carcinoma risk, and modeling estimated that about 440 UK cases each year could be prevented by switching from “very hot” to “hot” drinks if the association is causal.

14 Sep 2026

Study links eyelash extensions to skin mites, eye irritation and blocked glands

A study among young women who regularly have eyelash extensions has found most have tiny mites, called Demodex folliculorum, living on their lashes. These mites can cause a painful reaction in the skin called demodicosis.

10 Sep 2026

Coffee after colorectal cancer? Decaf and caffeine show different links with mortality

In a prospective analysis of 1,098 people with colorectal cancer, researchers found no significant association between total or caffeinated coffee intake and all-cause or colorectal cancer-specific mortality in the cohort overall. Decaffeinated coffee was associated with lower all-cause mortality, while the highest quartile of caffeine intake was associated with lower all-cause and colorectal cancer-specific mortality, although the observational study cannot establish causation.

10 Sep 2026

Brain interference explains why multitasking becomes difficult

Multitasking feels like a required skill in modern life, but as anyone who has tried keeping track of multiple chat windows, an email inbox, and a stream of phone notifications during a video call can tell you, figuring out which messages are important comes at a cost.

10 Sep 2026

Five minutes of coffee aroma was linked to shifts in mood and brain activity

Short-term coffee aroma exposure was followed by reductions in several negative mood measures and an increase in an EEG-derived relaxation index in 20 healthy young adults. Heart rate and HRV did not change significantly, and the uncontrolled study cannot establish that coffee aroma caused the observed responses.

10 Sep 2026

New genetic variant linked to previously unrecognized retinal disease

An international team of researchers led by the University Hospital and University of Bonn, as well as the universities of Edinburgh, Basel and Pennsylvania, has identified a previously unrecognized form of inherited retinal degeneration caused by a specific variant in the EFEMP1 gene.

10 Sep 2026

Tizanidine looked promising early in a migraine trial, but the benefit did not last

A randomized, double-blind, placebo-controlled trial found that low-dose tizanidine did not provide sustained reductions in headache burden over 12 weeks in people with episodic migraine, despite a transient improvement with the 1 mg dose at week 4. Exploratory analyses suggested that smoking and sex may influence tizanidine exposure, while sex-specific efficacy signals remained hypothesis-generating and require confirmation.

10 Sep 2026