Your schoolmate who acted like he was better than everyone else has probably shed some of that narcissistic behavior an adult. New research shows people tend to be less narcissistic as they age. Still, those who were more narcissistic as kids tended to be narcissists as adults. “One theory suggests that the social roles we…  read on >  read on >

Loneliness strikes more than a fifth of people worldwide, a new survey warns. In the Gallup survey published Wednesday, 23% of people said they felt lonely “a lot of the previous day.” Those experiencing feelings of loneliness often felt physical pain, worry, sadness, stress and anger, as well. Beyond its emotional toll, loneliness is “a…  read on >  read on >

Anorexia nervosa could be caused by lack of a specific brain chemical, reports a research team that has developed a possible cure for the eating disorder. Mouse studies have revealed that a deficit in acetycholine, a neurotransmitter associated with the brain’s reward system, could be linked to excessive habit formation. This deficit could be behind…  read on >  read on >

Sleep apnea is particularly dangerous for the heart health of young adults, even more so than in older folks, a new study warns. The link between sleep apnea and risk factors for heart disease is stronger in people between 20 and 40 years of age than in those 40 and older, researchers reported recently in…  read on >  read on >

Colorado health officials on Tuesday confirmed a case of human plague in that state. The infection — which occurred in Pueblo County, in the southern part of the state — was first reported Friday based on preliminary test results, while the source of the infection is still being tracked down. “Plague can be treated successfully with antibiotics,…  read on >  read on >

The second person to receive a kidney from a genetically modified pig has died, surgeons at NYU Langone Health announced Tuesday. The 54-year-old patient, Lisa Pisano, had both kidney failure and heart failure. She received the pig kidney April 12, eight days after she had a mechanical heart pump implanted.  On May 29, surgeons had…  read on >  read on >

While exposure to raw cow’s milk infected with the H5N1 avian influenza virus can make you sick, a new study suggests the virus may not spread quickly to other people. Researchers at the University of Wisconsin-Madison found that mice and ferrets got sick with influenza when H5N1 bird flu virus was dripped into their noses,…  read on >  read on >

An experimental “air mask” could help ward off infectious diseases while people are on the job, researchers report. The mask uses an air curtain blowing down from the brim of a hard hat to prevent airborne viruses from reaching a worker’s eyes, nose and mouth. The method can block 99.8% of viruses, lab tests show.…  read on >  read on >

Osteoarthritis could nearly triple a person’s risk of developing a multitude of other chronic illnesses, a new two-decade study finds. People with osteoarthritis (OA) — where cartilage breaks down, allowing bones to rub against each other — tend to develop multiple other health problems as the years progress, researchers found. These other chronic illnesses can…  read on >  read on >