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Global female infertility rates surge, hitting women in their late 30s hardest

Researchers analyzed global data from 1990 to 2021 and found that over 110 million women worldwide were affected by infertility, with a significant rise in age-standardized rates. The study highlights shifting trends, with the greatest burden among women aged 35–39, and projections showing further increases in age-standardized rates by 2050.

22 May 2025

Ancient DNA sheds light on evolution of relapsing fever bacteria

Researchers at the Francis Crick Institute and UCL have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained and lost genes in the process.

22 May 2025

Machine learning tool identifies metabolic clues in colorectal cancer

Scientists aiming to advance cancer diagnostics have developed a machine learning tool that is able to identify metabolism-related molecular profile differences between patients with colorectal cancer and healthy people.

22 May 2025

Exercise and diet advice misses the mark in improving heart health around the globe

A leading cardiovascular disease researcher from Simon Fraser University is ringing the alarm on universal recommendations intended to improve heart health around the globe.

22 May 2025

Confocal microscopy may help identify biomarkers for chemotherapy-induced neuropathy

A University of Arizona Comprehensive Cancer Center researcher received a $2.4 million National Cancer Institute grant to develop a noninvasive, confocal microscope to examine nerve endings of cancer patients with chemotherapy-induced peripheral neuropathy in the hopes of identifying potential biomarkers for the disease.

22 May 2025

Social connection remains an overlooked health factor, research shows

Research confirms that social isolation and loneliness significantly impact health and mortality, even if not listed on death certificates.

22 May 2025

Mild winter temperatures offer surprising mental health benefits

Higher ambient temperatures during the cold season were linked to reduced stress, improved life satisfaction, better self-reported health, and less loneliness in a large Swiss population study. While effects were modest at the individual level, they highlight the broader mental health impacts of seasonal temperature changes.

22 May 2025

Blood markers offer hope for early detection of teen depression

Using a novel lab method they developed, McGill University researchers have identified nine molecules in the blood that were elevated in teens diagnosed with depression.

22 May 2025

Study highlights economic burden of RSV in European children requiring primary care

Infections from respiratory syncytial virus (RSV) in children requiring primary care led to significant societal economic costs from outpatient treatment and parental work absences in Europe, according to a study just published on Eurosurveillance.

22 May 2025

Integrating phytomedicine and nanotechnology in managing COVID-19 related heart disease

Acute coronary syndrome (ACS) in patients with SARS-CoV-2 infection represents a critical intersection of viral-induced inflammation and cardiovascular pathology.

22 May 2025

Wastewater monitoring offers new tool for cervical cancer prevention

Scientists in Uruguay have found genotypes of the Human Papillomavirus (HPV) linked to cervical cancer in urban wastewater, saying it could help inform disease prevention efforts.

22 May 2025

Cutting back on sugary drinks may protect men’s fertility, review finds

Regular consumption of sugar-sweetened beverages is associated with lower sperm count, motility, and increased DNA damage, potentially impairing male reproductive health. This narrative review highlights dose-response effects, mechanisms, and research gaps, calling for further studies on diverse populations.

22 May 2025

Study uncovers new factor linked to the development of cardiac hypertrophy

When the workload on the heart increases, the ventricular wall may thicken too, known as cardiac hypertrophy.

22 May 2025

Metabolite profiles in spinal fluid predict mortality in tuberculous meningitis

Radboudumc researchers Kirsten van Abeelen, Edwin Ardiansyah, Sofiati Dian, Vinod Kumar, Reinout van Crevel and Arjan van Laarhoven used metabolomics to study cerebrospinal fluid (CSF) samples from tuberculous meningitis patients in Vietnam and Indonesia, with long-standing collaborators from Bandung and Jakarta (Indonesia), the Broad Institute (Boston) and the Oxford University Research Unit in Ho Chi Minh City (Vietnam).

22 May 2025

Living in disadvantaged neighborhoods linked to earlier menopause

A new study led by the Harvard Pilgrim Health Care Institute highlights the significant impact of living in disadvantaged neighborhoods on the onset of menopause.

22 May 2025

Endurance training leads to significant drops in vascular resistance and diastolic blood pressure

Eight months of supervised marathon training in Finnish adults led to moderate reductions in peripheral diastolic blood pressure, systemic vascular resistance, and extracellular water volume. Central (aortic) blood pressure showed a non-significant decline, highlighting the specific impact of exercise on vascular health.

22 May 2025

Infrared vision achieved through new nanoparticle contact lenses

Neuroscientists and materials scientists have created contact lenses that enable infrared vision in both humans and mice by converting infrared light into visible light.

22 May 2025

Early childhood weight patterns linked to future obesity risk

Not all children grow the same way. A new study from the Environmental influences on Child Health Outcomes (ECHO) Program suggests that body weight changes in early childhood may be associated with later obesity risk.

22 May 2025

Natural compounds from Brazilian plants show promise against stomach cancer

A new review was published in Volume 12 of Oncoscience on May 8, 2025, titled "The chemopreventive effects of native Brazilian plants on stomach cancer: A review of the last 25 years."

22 May 2025

Guideline-directed medical therapy boosts survival in the oldest heart attack patients

Researchers have found that prescribing guideline-directed medical treatment (GDMT), regardless of the number of medications, can improve survival rates in patients 90 years of age and older following their first heart attack, with the greatest benefit observed in patients who received all four recommended post-acute myocardial infarction (AMI) therapies.

22 May 2025