Bullying is a widespread issue that leads to various harmful effects. 20% of students ages 12 to 18 report they have experienced some form of bullying. 30% of adolescents admit to bullying others. Research conducted by the National Institute of Child Health and Human Development found that anyone involved in bullying - bullies or victims of bullying - are at an increased risk of depression. Additionally, adolescents that bully others are at an increased risk of substance abuse, academic problems, and violence towards others later in life. Victims of bullying are at an increased risk for mental disorders, problems sleeping, and problems adjusting to school. It also may cause long-term damage to self-esteem. With the increased use of social media sites, cyberbullying has also become more prevalent. These sites have become platforms where hurtful posts can be spread rapidly, resulting in harmful mental health consequences.