1. Mental Illness
There are some notions that mental illnesses are actually the cause of the 90% of suicides, making it the most common cause. Schizophrenia, bipolar disorder, anxiety, and depression are just some of the mental illnesses that people may suffer, eventually not being able to deal with them, which leads to suicide. Although there are many campaigns that try to raise the awareness, mental illnesses are still one of the biggest causes of suicide in America.