Serious events, like the death of a child or parent, a natural disaster, being physically attacked, experiencing sexual abuse, or being forcibly separated from your family, can cause psychological problems, according to a Buffalo statement.
http://ummid.com/news/2011/December/19.12.2011/how_to_b_tough.htm
http://ummid.com/news/2011/December/19.12.2011/how_to_b_tough.htm
