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.