School-age kids who spend hours a day playing video games may outperform their peers on certain tests of mental agility, a new study suggests. Researchers found that compared with children who never played video games, those who regularly spent hours gaming had higher scores on two standard cognitive tests: one measuring short-term memory and another…  read on >  read on >

Folks who regularly use weed could be in for a rocky road if they ever require major surgery, a new study reports. Frequent marijuana users tend to experience more pain as they recover from surgery, and they require more opioid drugs (like morphine) to deal with that pain, the researchers found. “It’s not an enormous…  read on >  read on >

Training to become a doctor can be grueling, and now a new study finds a direct correlation between longer work hours and depression symptoms in first-year residents. Medical residency — the training that new doctors undergo at hospitals or clinics — is infamous for its demanding schedule, high pressure and relatively low pay. Research has…  read on >  read on >

Some children struggle to read or spell because of a condition called dyslexia that is known to run in families. Now, researchers report they have pinpointed a large number of genes responsible for the disorder. “Our findings show that common genetic differences have very similar effects in boys and girls, and that there is a…  read on >  read on >