Too much time online might raise kids’ odds for mental health woes. A new study links excessive screen time to the mood disorders, and found brain changes that contribute to the disorders. Read more

Flu ups short-term odds for heart attack 6-fold. Besides emphasizing the need for flu patients to be aware of heart attack symptoms, a new study also underscores the importance of getting a flu shot. Read more

Gun deaths of U.S. kids keep rising, but state laws can help. As Americans grapple with yet another school shooting, recent research delivers bad and good news on gun violence among children. Read more