Suicide is not a contagion, but it can sometimes spread like one, particularly with the help of the media, relationships and genes.
On Jan. 14, Department of Defense officials acknowledged that during 2012, service members committed suicide at a record pace as more than 349 people took their own lives across all of the military's four branches.
News of suicides, like these reports of suicides in the armed forces, can actually prompt people who are already emotionally vulnerable and mentally ill, to consider suicide themselves, say psychologists.
"It tends to facilitate feelings of helplessness and hopelessness," said David Rudd, Dean and professor of psychology at the University of Utah's College of Social and Behavioral Science. "It also facilitates the false idea that suicide is a solution to life's problems."
Media coverage of prominent suicides, in particular, can spark additional suicides because of all the praise that generally is heaped on the deceased, along with highlights of all their life achievements.
That, said Rudd, suggests to vulnerable people that if such an admirable person saw suicide as a good choice, perhaps it really is a good idea and could even enhance a person's significance. It becomes a distorted kind of celebrity endorsement, if you will.
"'I was insignificant in life, but I can be significant in death,'" Rudd said, expressing the potentially troubled logic of a person most vulnerable to mixed suicide messages.
This false endorsement, like that for products and services, also works if the suicide is done by friends, relative, schoolmate or coworker.
"Seeing that people similar to ourselves succeed in performing a particular type of action tends to strengthen our beliefs in our own ability to perform the same type of action," explained Peter Hedström, director of the Institute for Futures Studies in Stockholm, Sweden.