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What does more screen time mean for how children see and focus?

A cross-sectional study of children aged 4 to 9 found that greater caregiver-reported daily screen time was associated with lower contrast sensitivity and differences in how age related to visual-search performance. The associations varied by visual feature and task demands, suggesting that screen exposure may relate differently to lower-level visual processing and selective attention across middle childhood.

31 Aug 2026

Semaglutide did more than cut weight in this analysis of 6,239 adults

A systematic review and meta-analysis of nine randomized controlled trials involving 6,239 adults with overweight or obesity without diabetes found that subcutaneous semaglutide produced substantially greater reductions in body weight, waist circumference, and C-reactive protein than placebo. The higher dose of 7.2 mg semaglutide showed potential for greater weight loss, although the evidence is largely based on a single trial and requires confirmation.

31 Aug 2026

Social media messages could empower parents to prevent teen vaping

Parents are an important line of defense against teen vaping, yet many lack the knowledge and tools needed to recognize vaping products, understand their risks and prevent their children from using them.

31 Aug 2026

AI tools map tumor architecture to predict treatment response

Spatial transcriptomics is a powerful tool to create a detailed map of not just how genes are expressed in a piece of tissue, but also where genetic activity takes place in different cells and locations within the tissue.

31 Aug 2026

Multimorbidity linked to shorter lifespans in aging dogs

As dogs age, many develop more than one chronic health condition. New research from the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) shows those conditions can dramatically shorten a dog's lifespan, highlighting the importance of managing multiple diseases together rather than individually.

31 Aug 2026

Near-real-time data tracks health impacts during heat waves

As summer heat waves grow longer and more dangerous, public health officials often must wait months to learn who and how many people were harmed.

31 Aug 2026

CAC-based statin initiation shows no difference in major cardiovascular events

There was no difference in major cardiovascular events when statin initiation was based on coronary artery calcium compared with traditional risk factor assessment, according to results presented in a Hot Line session today at ESC Congress 2026.

31 Aug 2026

Could the type of fiber children eat matter for their developing gut microbiome?

A recent study found that different dietary fibers can shape the composition and activity of the gut microbiome during early childhood, with xyloglucan, arabinoxylan, and pectin increasing short-chain fatty acid production in laboratory fermentation experiments. Some fibers also supported gut barrier measures and altered inflammatory responses, while observational data linked higher pectin intake with greater microbial diversity in young children.

31 Aug 2026

How far your eyes move may change what you see

Researchers found that the distance the eye travels during a rapid gaze shift changes post-saccadic visual sensitivity by altering the spatial-frequency information carried by retinal luminance transients. Larger saccades preferentially enhanced lower-frequency, coarser visual information, while very small saccades could increase the relative visibility of finer, higher-frequency information.

31 Aug 2026

Breastmilk from cannabis users showed differences, but cannabis may not be the whole story

A narrative review found that maternal cannabis use may be associated with differences in breastmilk fat, protein, lactose, and the immune factor secretory immunoglobulin A, but evidence comes primarily from only two human studies and remains limited and inconsistent. The authors stress that maternal diet, food security, socioeconomic circumstances, and other forms of adversity could confound these associations and should be incorporated into future research.

31 Aug 2026

Community responders fail to improve out-of-hospital cardiac arrest survival

Community first responders did not improve 30-day survival in patients with out-of-hospital cardiac arrest, according to results presented in a Hot Line session today at ESC Congress 2026.

31 Aug 2026

Memory declines begin earlier in life than previously thought

Memory loss is usually thought of as something to address as a person ages. Slip-ups like forgetting someone's name or recognizing a familiar face but not remembering where you know them from are often viewed as issues that arise later in life.

31 Aug 2026

Seminal fluid facilitates monkeypox virus entry into human cells

Monkeypox virus used to be transmitted predominantly from animals to humans. In recent years, however, new virus variants have become increasingly capable of spreading from person to person.

31 Aug 2026

Each human breath acts as unique fingerprint for thinking

Breathing shapes thinking, attention, memory, perception, emotional regulation, and overall mental health by affecting activity in a variety of brain areas.

31 Aug 2026

Mathematical model shows combined strategies greatly reduce Mpox transmission

Mpox (formerly Monkeypox), a viral zoonotic disease, remains a global public health concern because it can spread between animals and humans and among people.

31 Aug 2026

New ASICA app helps melanoma survivors check their skin

Researchers behind an app designed to support people after skin cancer treatment are inviting former early-stage melanoma patients to take part in its final evaluation tests.

31 Aug 2026

Catheter-directed thrombolysis improves short-term outcomes in pulmonary embolism patients

In patients with intermediate−high risk pulmonary embolism, catheter-directed thrombolysis improved short-term clinical outcomes compared with standard anticoagulation therapy alone, according to results presented in a Hot Line session today at ESC Congress 2026.

31 Aug 2026

New dual-drug strategy blocks triple-negative breast cancer growth

Triple-negative breast cancer (TNBC) has a frustrating ability to adapt. Although this aggressive form of breast cancer can initially respond well to chemotherapy, cancer cells often find ways to survive, allowing the disease to return and become resistant to treatment.

31 Aug 2026

Lifestyle factors aggravate genetic causes of male infertility, study finds

Lifestyle factors can worsen the effects of genetic causes of male infertility, finds new research that could help explain why men carrying similar genetic mutations often experience different levels of fertility impairment.

31 Aug 2026