As you head into the great outdoors this summer, keep safety in mind, an expert says. Drowning is one of summer’s risks. It only takes a few seconds and can happen without an obvious struggle, according to Dr. Seth Hawkins, a wilderness medicine expert and assistant professor of emergency medicine at Wake Forest Baptist Health…  read on >  read on >

A native South American population that lives a pre-industrial lifestyle may have a slower rate of brain aging than the typical Westerner, a new study finds. The study focused on the Tsimane population, whose roughly 16,000 members dwell in a remote part of the Bolivian Amazon. They live by farming, hunting, gathering and fishing —…  read on >  read on >

Surgery soon after a diagnosis of early-stage lung cancer is crucial in reducing the risk of recurrence and death, a new study finds. “Patients with early-stage cancer have the best chance for survival,” said senior author Dr. Varun Puri, a thoracic surgeon and professor of surgery at Washington University School of Medicine in St. Louis.…  read on >  read on >

If more proof of the safety of vaccines is needed, a new study delivers fresh evidence that they carry few harms for children, adults and pregnant women. “This in-depth analysis found no evidence of increased risk of serious adverse events following vaccines, apart from a few — previously known — associations,” said Susanne Hempel, director…  read on >  read on >

Researchers who pinpointed 178 gene variants linked to major depression say their findings could improve diagnosis and treatment of a disorder that affects 1 in 5 people. The study draws on a huge database, analyzing the genetic and health records of 1.2 million people from three databanks in the United States, the U.K. and Finland,…  read on >  read on >

Adults with obsessive-compulsive disorder, a common mental health condition known as OCD, may have more than triple the risk of having a stroke, according to a new report from Taiwanese researchers. As to why, the study authors aren’t sure. The investigators speculate that other mental health problems suffered by OCD patients — “comorbidities” such as…  read on >  read on >

Angry outbursts at the office, threats made in everyday interactions: New research using data from hundreds of studies suggests folks who act out in this way often have narcissistic traits. They don’t even have to rate high in narcissism to be prone to aggressive behavior, the research team found. “Those who are high in narcissism…  read on >  read on >