Mental disorders have almost doubled over the last three decades, affecting one in seven people worldwide Published on Thursday, the study found that nearly 1.2 billion people worldwide had a mental disorder in 2023, an increase of 95% since 1990. Out of 12 disorders studied, the researchers found the sharpest increases in anxiety disorders and major depressive disorders, which rose by 158% and 131%, respectively. These two conditions are now the world’s most prevalent mental illnesses. What