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Extended work shifts disrupt normal cortisol patterns in female nurses

Levels of cortisol, often referred to as the "stress hormone," typically peak in the early morning hours, preparing the body for the day's challenges by increasing alertness and energy levels, and gradually decline throughout the day, reaching their lowest point around midnight.

8 Apr 2026

Intimacy study offers reassuring news for celiac-discordant couples

For people living with celiac disease, the fear of gluten exposure can extend beyond food - sometimes even into moments of intimacy.

8 Apr 2026

Antiviral drugs and shingles vaccines tied to lower dementia risk

New evidence links viral infections to dementia risk, suggesting vaccines and antiviral therapies may offer preventive pathways against cognitive decline.

8 Apr 2026

Sugar intake may reduce effectiveness of relaxation exercises

How does sugar affect relaxation exercises? A new study carried out by researchers from the University of Konstanz provides revealing insights into the connection between blood glucose and the autonomic nervous system: The intake of sugar counteracts relaxation.

7 Apr 2026

Gut microbiota regulates intestinal epithelial cell function and plasticity

A research team led by scientists from the State University of Campinas (UNICAMP) in São Paulo, Brazil, has made significant progress in understanding the relationship between gut microbiota and intestinal cells.

7 Apr 2026

Self-practice training improves CBT skills and reflective practice

Researchers at The University of Osaka have developed and evaluated a new eight-week training program that enables psychology trainees to effectively CBT by applying its techniques to themselves.

7 Apr 2026

Brain study reveals sender and receiver roles in default mode network

The default mode network (DMN) is a distributed set of interconnected brain regions that has long been associated with internally oriented cognition such as remembering the past, thinking about the future, or thinking about oneself.

7 Apr 2026

Childhood trauma inspires research into brain repair and recovery

What began as a child's encounter with trauma has grown into a research programme committed to understanding recovery.

7 Apr 2026

Neighborhood conditions linked to cellular aging and health disparities

There's a growing consensus that your zip code is a strong predictor of your health and lifespan. Now, researchers at NYU School of Global Public Health have determined that neighborhood conditions may be driving aging at the cellular level.

7 Apr 2026

Can diet influence thyroid disease? A major review points to Mediterranean-style eating

This review found that thyroid health depends on more than iodine alone, with selenium, iron, zinc, vitamins, omega-3s, and overall eating patterns all shaping thyroid function and autoimmunity. It also concluded that Mediterranean-style diets are linked to more favorable thyroid outcomes, while unnecessary restrictive diets offer little benefit without a clear medical indication.

7 Apr 2026

Study advances safe, reversible male contraceptive without hormones

Cornell University scientists have taken a major step toward developing a safe, reversible, long-acting and 100% effective nonhormonal male contraceptive, considered the holy grail of male contraception.

7 Apr 2026

Study questions benefits of fish oil after mild brain injuries

A first-of-its-kind study led by the Medical University of South Carolina raises questions about the value of fish oil supplements for people with repetitive mild traumatic brain injuries.

7 Apr 2026

Early genetic signals connect diabetes subgroups to heart disease risk

A growing body of research shows that diabetes can be stratified into five different subgroups. Researchers at Lund University have now investigated whether a person's genetic predisposition to different diabetes subgroups can help assess the risk of developing coronary artery disease.

7 Apr 2026

Waterfowl movement patterns influence spread of avian influenza outbreaks

The movement patterns of waterfowl, including ducks, swans and geese, may affect the spread of highly pathogenic avian influenza in bird populations, according to a new study from the University of Georgia.

7 Apr 2026

Hearing loss and sex shape dual-task outcomes in older adults with mild cognitive impairment

Cognitive and physical training can help older adults with mild cognitive impairment (MCI) maintain or improve their ability to move and think simultaneously, but hearing ability and sex influence outcomes, according to a new Concordia-led study.

7 Apr 2026

Metformin boosts an exercise-linked metabolite and may help control weight in prostate cancer patients

Metformin raised the exercise-linked metabolite Lac-Phe in prostate cancer patients across disease stages and treatment settings, while Lac-Phe itself did not predict anticancer response. Patients in the BIMET-1 metformin arm also showed better weight management during anti-androgen therapy, highlighting a possible metabolic benefit relevant to prostate cancer care.

7 Apr 2026

What happens in the brain on psychedelics? Scientists identify a common circuit pattern

Researchers combined 11 international resting-state fMRI datasets to map how psychedelic drugs reshape brain connectivity across cortical and subcortical circuits. The mega-analysis found a shared signature of stronger coupling between transmodal association networks and unimodal or sensorimotor systems, alongside selective and variable reductions in within-network connectivity.

7 Apr 2026

New blood test spots four cancers and other diseases by stripping away healthy DNA noise

MethylScan is a new low-cost cell-free DNA methylome test that removes much of the healthy blood DNA background, helping rare disease signals stand out more clearly. In more than 1,000 people, it showed strong performance for detecting four cancers, classifying liver diseases, and identifying organ-specific damage.

7 Apr 2026

Geographic disparities persist in the decline of U.S. cancer deaths

In 1991, the U.S. experienced a significant shift in cancer death rates, as, for the first time, deaths began a steady decline that continues to the present day. Researchers at Mississippi State's Social Science Research Center, in partnership with scientists at Oak Ridge National Laboratory, examined this decline to identify where and who benefited the most from this dramatic improvement.

7 Apr 2026

Treating heart failure patients with i.v. furosemide and HSS reduces inflammatory, remodeling markers

A new research paper was published in Volume 18 of Aging-US on March 26, 2026, titled "Effects of intravenous furosemide plus small-volume hypertonic saline solutions on inflammatory, remodeling markers and epigenetics signatures of patients with congestive acute decompensated heart failure (ADHF)."

7 Apr 2026