The document discusses the health risks of tobacco, alcohol, and drug use. It states that smoking kills more people than AIDS, car accidents, suicides and murders combined. Smoking at a young age is both unhealthy and illegal. The document also outlines the negative health effects of excessive alcohol consumption, such as vomiting, changes in heart rate, high blood pressure, and liver disease. Finally, it notes that illegal drugs are often produced without controls and can negatively impact people both physically and mentally through chemical changes that lead to addiction.