Anxiety Disorders, Bipolar Disorder, Depression, Dissociative Disorders, Attention Deficit Hyperactivity Disorder (ADHD), Post-Traumatic Stress Disorder, Schizophrenia,
Obsessive-Compulsive Disorder.

Analysis of Depression: 4 Major Causes, 8 Types, Exploring the Meaning of Persistent Depression

According to estimates from the World Health Organization (WHO), in 2015, more than 300 million people worldwide were affected by depression