Research suggests the social hierarchies of adolescence can shape adult health, relationships and expectations for decades, but supportive friendships and a conscious effort to revise old assumptions may weaken the grip of painful school experiences.
An analysis of 51 studies found that healthy diets, exercise, and certain medications changed DNA biomarkers associated with aging, while supplements showed little effect. Researchers caution that these shifts do not prove people remain healthier or live longer.
Artificial intelligence, MRI scans and sleep tracking could help scientists detect unhealthy brain ageing earlier, while research on depression and hibernating squirrels may reveal new treatments. Yet lifestyle, social connection, activity and sleep remain essential.
General anaesthetics globally reduce brain activity, but studies of the thalamus, cortical networks and responsive patients suggest unconsciousness may be more complex than a simple shutdown, offering scientists a rare tool for probing consciousness itself.
Research on the Hadza, Tsimane and San suggests better sleep may depend less on perfect nightly duration and more on circadian cues, cooler temperatures, relaxed evenings, social connection and accepting natural variation.
Doctors serving Pennsylvania’s Amish communities report gravely ill measles patients as hospitals face pressure on scarce isolation rooms. The outbreak has also fueled a dispute between state and federal officials over deaths associated with the virus.
Three Tampa Bay counties have declared emergencies as dengue cases rise, with Hillsborough accounting for 160 of the region’s 169 reported cases and Pinellas preparing for added mosquito control costs that could reach $1 million.
Children may trust AI answers and form attachments before they understand the technology. Pediatrician Edith Bracho-Sanchez urges parents to model careful use, protect opportunities for learning and help children recognize which questions belong with trusted people.
Research links laughter with lower cortisol, improved blood flow and greater well being, while comedians and comedy club leaders argue that regular laughs can also provide resilience and connection during difficult times.
Dr. Heidi Overton defended vaccine safety during her Senate confirmation hearing but faced sharp scrutiny over mifepristone, her managerial qualifications and whether she would challenge President Trump when scientific evidence conflicts with his position.
Stroke incidence rose sharply among adults ages 20 to 54, while researchers documented increases in major risk factors and substance use. Experts stressed prevention, screening and immediate emergency care when warning signs appear.
Studies suggest GLP-1 medications could lower certain cancer risks and recurrence rates, but conflicting findings and the absence of dedicated randomized trials leave researchers seeking clearer answers about weight loss, immune responses and long term outcomes.
Scientists have created enamel producing organoids and developing tooth structures using human and animal cells, raising hopes for biological fillings and replacement teeth. Human treatment remains years away, with further research and animal studies still required.
Sleeping in can ease some effects of short sleep, but large schedule shifts may disrupt sleep pressure and the body clock. Research points to roughly one to two extra hours as a potential sweet spot for most people.
After an Alzheimer’s diagnosis in August 2025, Chesley “Sully” Sullenberger and his wife are revealing the quiet memory and behavior changes they initially missed while urging families to seek testing when something feels unusual.
Students for Life of America has given the FDA 60 days to address allegations that the agency failed to complete required environmental consultations before approving mifepristone, or face a lawsuit over possible risks to waterways and wildlife.
An analysis of nearly 8.8 million adults linked each additional 100 grams of ultra-processed food consumed daily to increased risks of cardiovascular events, cancer, death, metabolic syndrome and diabetes, although researchers could not establish direct causation.