Depression is a mental state of low mood and there are several subtypes of depression, but major depressive disorder is the one that's usually intended. It is expected to be the number one cause of disease burden worldwide by 2030. The term major depressive disorder was first used in the 1970s and the disorder was added to the Diagnostic and Statistic Manual of Mental Disorders known as the DSM in the 1980s.
Depression can quietly infiltrate every part of your life—dimming your interests, disrupting your emotions, and straining your relationships. Maybe you find yourself crying easily, feeling numb, or getting angry over small things. Perhaps you distance yourself from loved ones, even when you need their support the most. If any of this resonates with you, know that you're not alone. Struggling with depression doesn’t mean something is wrong with you—it simply means you may need support and depression help to start feeling like yourself again.