This document summarizes various substance-related and addictive disorders as well as their effects on health. It discusses 10 classes of drugs that can cause substance use disorders, including alcohol, cannabis, caffeine, opioids, sedatives, and stimulants. It then provides details on the diagnostic criteria for caffeine intoxication and caffeine-related disorders. The document also discusses inhalant use disorder and symptoms of inhaling specific inhalants like toluene and nail polish remover. It concludes with the scale used to measure social networking addiction.