Kids don’t easily outgrow the pain of bullying, according to a new study that finds that people bullied as kids are less mentally healthy as adults. …

“To my surprise at least, there were some very strong long-term effects on their risk for depression, anxiety, suicidality, a whole host of outcomes that we know just wreak havoc on adult lives,” said study researcher William Copeland, a clinical psychologist at Duke University Medical Center.

Previous studies have found that both bullies and their victims are at higher risk for mental health problems and other struggles in childhood. One study, presented in 2010 at the Annual Convention of the American Psychological Association, found that bullies were at higher risk of substance abuse, depression, anxiety and hostility than non-bullies.

For bully victims, being targeted can result in increased suicide risk, depression, poor school performance and low self-esteem. But most studies on the effects of bullying focus on the childhood period.