Harmful effects of tobacco and alcohol.

Smoking causes coronary heart disease, the leading cause of death in the U.S. Smoking causes lung cancer and lung diseases including COPD, and Emphysema.
Alcohol can cause brain damage. Binge drinking can cause blackouts, memory loss and anxiety. Long term drinking can result in permanent brain damage, serious mental health problems and alcohol dependence or alcoholism.

#besmartdontstart

Anxiety disorders, attention deficit hyperactivity disorder (adhd, add), and autism spectrum disorder (asd). (source: )