Exploring the Relationship between Drug Addiction and Quality of Life in Herat, Afghanistan: A Cross-sectional Study.

Background: Addiction is a global public health problem, with over 36 million people suffering from drug-use disorders. Afghanistan, the world's leading opium producer, has high rates of drug use owing to the easy access to drugs in this country. This study aimed to investigate drug users' quality of life in Herat, Afghanistan, and identify the factors affecting it.