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A stressful year leads to anxiety. Lasting isolation gives way to depression. An old trauma nags until it becomes paralyzing.

This umbrella review synthesised five meta-analyses to estimate the reported prevalence of orthorexia nervosa and examine its psychological correlates. Findings show wide variability in prevalence estimates and consistent links with eating disorder symptoms, obsessive-compulsive traits, and perfectionistic strivings, limited by high methodological heterogeneity.

A new study from Mass General Brigham found the Brain Care Score (BCS) is a strong predictor of stroke across different racial groups in the U.S.

Fertility rates in much of Sub-Saharan Africa remain high, despite declining child mortality and improved access to contraceptives and female education - factors that generally lead to smaller families and improved economic conditions in developing countries.

Filoviruses get their name from the Latin word "filum," meaning thread-a reference to their long, filamentous shape. This virus family contains some of the most dangerous pathogens known to science, including Ebola, Sudan, Bundibugyo and Marburg viruses.

This real-world study shows that recent and habitual light exposure are linked to lower subjective sleepiness and faster reaction times in daily life. Brighter and more stable daytime light patterns were associated with better performance on specific cognitive tasks, independent of sleep and time of day.

Lung cancer is the second-most common cancer and the leading cause of cancer death in the United States.

Healthy aging induces parallel changes in brain functional activity and structural morphology, yet the interplay between these changes remains unclear.

When most of us think of DNA, we have a vague idea it's made up of genes that give us our physical features, our behavioral quirks, and keep our cells and organs running.

According to the U.S. Centers for Disease Control and Prevention (CDC) and other sources, there are approximately 1.2 million people living with HIV in the United States, and another 1.2 to 2.2 million who are at highest risk for infection and could benefit from the preventive measure known as HIV pre-exposure prophylaxis (PrEP).

An experimental drug developed at Northwestern University has demonstrated further promise as an early intervention for Alzheimer's disease.

Gestational diabetes can cause a multitude of complications in the offspring, but to date, the reasons are incompletely understood.

People with ADHD are at a higher risk of offending than those without an ADHD diagnosis. The same pattern appears among their relatives, according to a new study from örebro University.

Scientists at City of Hope, one of the largest and most advanced cancer research and treatment organizations in the U.S. and a leading research center for diabetes and other life-threatening illnesses, have unraveled how citrin deficiency (CD), a rare genetic disorder that prevents the liver from converting food into energy efficiently, can trigger fat buildup in the liver - even in lean individuals.

A new study finds menopause symptoms to be very frequently reported by female endurance athletes, with many perceiving a negative effect on their training and performance.

The week after the autumn clock change is associated with a reduction in demand for NHS services for sleep disorders, cardiovascular disease, anxiety, depression, and psychiatric conditions in England, finds a study in the Christmas issue of The BMJ.

A major review in Frontiers in Science highlights how tackling unsustainable food systems-reflected by our changing food environment-is urgent for both health and climate.

Your "roommate's" genes could be influencing the bacteria living in your gut, and vice versa, according to a study of rats published today in Nature Communications.

Real estate investment trust (REIT)-acquired U.S. hospitals were associated with a greater risk of bankruptcy or closure than non-REIT-acquired hospitals, according to a new study led by researchers at Harvard T.H. Chan School of Public Health.

The study finds no rise in injuries during menstruation in elite football, yet highlights increased severity, urging better tracking for athlete health.