Babies born at an extremely low birth weight (ELBW) are miracles, but they are more likely to be bullied as children, and this can significantly increase their risk for mental health problems as adults. Not only that, but the more they were bullied as children, the more likely they are to develop problems such as depression, anxiety, antisocial behavior or attention-deficit/hyperactivity disorder (ADHD) as adults, says a new study from McMaster University's Michael G. DeGroote School of Medicine.