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A year-long, diet-controlled intervention shows that flaxseed oil–derived alpha-linolenic acid significantly increases erythrocyte EPA, DPA, and DHA across omnivorous, vegetarian, and vegan diets. The magnitude of improvement is driven mainly by baseline omega-3 status, while absolute EPA and DHA levels in vegans remain lower than in omnivores.

New research among World Trade Center (WTC) responders with chronic post-traumatic stress disorder (PTSD) has uncovered measurable physical changes in their brain structure, consistent with changes in the balance of myelinated to unmyelinated neurons (fast- and slow-conducting nerve cells) across both hemispheres of the brain.

Researchers at the Federal University of São Paulo (UNIFESP) in Brazil have discovered that SARS-CoV-2, the virus that causes COVID-19, uses a sophisticated tactic to evade the human body's defense system.

Use of nicotine pouches has risen substantially in Great Britain over the last five years, particularly among young men, with one in 13 (7.5%) men aged 16 to 24 now using them, according to a new study led by researchers at UCL (University College London).

The Hong Kong Polytechnic University (PolyU) has developed an acid-resistant "ultra-stable mucus-inspired hydrogel" (UMIH), marking a breakthrough in the field of gastrointestinal medicine.

A new study shows that the embryo and the uterine lining conduct an active "conversation" from the very earliest stages of implantation. They engage in a back and forth of tiny packages called extracellular vesicles and lipid droplets, which carry metabolites and signals.

A McGill-led study is challenging a popular theory about how dopamine drives movement, a discovery that could shift how scientists think about Parkinson's disease treatments.

Age-related macular degeneration, the leading cause of vision loss and blindness for Americans 65 and older, is a progressive disease affecting central vision.

Frailty is a syndrome resulting from age-related decline across multiple organ systems. A new study, conducted at the University of Jyväskylä, Finland, shows that slower reaction time and lower response accuracy in cognitive tasks are associated with higher levels of frailty.

A review in Developmental Medicine & Child Neurology summarizes the multiple benefits of sport participation for people with cerebral palsy.

Severe weather events have long-term health consequences for vulnerable older adults, according to a study in the Journal of the American Geriatrics Society based on data following Hurricane Harvey.

The US Child and Dependent Care Tax Credit (CDCTC), which helps offset a portion of child or dependent care expenses, requires that both parents in married households, or the primary caregiver in single-parent and divorced households, participate in paid employment.

A new study presents robust evidence on the role of lysophosphatidylcholines (LPCs) in the onset of Alzheimer's disease. Researchers discovered that LPCs-compounds that transport a variety of healthy fatty acids to the brain-either promote Alzheimer's or protect against it, depending on a person's genetics.

Patients with depression are at higher risk of cardiovascular disease, and a new study suggests that stress may help explain why.

One of the main proteins that contributes to Alzheimer's disease is called phospho-tau (p-tau). When p-tau gets too many phosphate groups attached to it (a process called hyperphosphorylation), it starts to stick together and form clumps called "tangles" inside of brain nerve cells.

In modern society, physical inactivity and sedentary behavior have become common issues globally. This trend is also growing among children, raising concerns for their mental and physical health.

A study reveals baloxavir outperforms oseltamivir in reducing hospitalization rates for influenza, highlighting its clinical advantages in outpatient settings.

This study shows that cocoa flavanols can preserve endothelial function during sitting, suggesting dietary strategies to mitigate cardiovascular risks.

Research published in Health Economics indicates that regular childcare provided by grandparents can ease the pressures on parents but may have some negative impacts on children's health.

What keeps our cells the right size? Scientists have long puzzled over this fundamental question, since cells that are too large or too small are linked to many diseases. Until now, the genetic basis behind cell size has largely been a mystery.