High risk of addiction and compulsive use
Heart attack, arrhythmias, or sudden cardiac arrest—even in young, healthy people
Stroke and seizures due to constricted blood vessels and reduced oxygen supply
Lung damage, chronic cough, and respiratory failure (when smoked)
Gastrointestinal damage and severe abdominal pain from reduced blood flow
Neurological effects like memory problems, poor decision-making, and long-term cognitive decline
Psychiatric issues including paranoia, hallucinations, aggression, and depression
Malnutrition, dehydration, and weakened immune system from poor self-care
Social and legal consequences such as financial strain, broken relationships, and legal trouble