Depression by the Numbers

Major depressive disorder is among the most common mental health conditions on the planet, and the World Health Organization ranks depression as a leading cause of disability worldwide. Diagnosis under DSM-5 asks for at least five of nine symptoms sustained for two weeks or longer, from persistent sadness to changes in sleep and appetite.

Our condition pages break down what the criteria mean in plain language, what CBT and SSRIs actually do, and when to seek urgent help. Read the facts, then share them..