By Chrissy Sexton - Earth 02/14/2019
"...“Sibling bullying is the most frequent form of family violence and it is often seen as a normal part of growing up by parents and health professionals, but there is increasing evidence that it can have long-term consequences, like increased loneliness, delinquency and mental health problems,” said Professor Wolke. ..."
Read the entire article: https://www.earth.com/news/sibling-bullying-large-families/