Depression is more than just feeling sad often - which symptoms indicate mental illness. Around eight to ten percent or ten percent of adult Germans aged 18 to 79 develop a unipolar or persistent depressive disorder over the course of a year.
A serious mental illness can occur if at least five signs become noticeable over two weeks. Two main symptoms are crucial. People who suffer from depression lose interest in activities and things that were once meaningful. “What if I just weren’t there anymore’ thoughts always come back to people with depression, especially when it is already severe.