THE MEDICAL NEWS

Alveolar macrophages are immune cells that live in the tiny air sacs of the lungs. Under normal conditions, these cells act as guardians, keeping the lungs healthy, supporting breathing, and preventing unnecessary immune responses.

Imagine being able to watch organs and tissues work in real time. That's the power of Positron Emission Tomography, or PET imaging, a technology that gives physicians and researchers a window into cellular processes.

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.

Access to autism evaluations through specialty health care is notorious for long wait times across the United States.

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.