Physical signs of substance abuse can include dilated pupils, increased heart rate, slurred speech, and impaired coordination.

Behavioral signs of substance abuse can include increased irritability, decreased motivation, social isolation, and changes in sleep patterns.

Psychological signs of substance abuse can include depression, anxiety, paranoia, and hallucinations.

Social signs of substance abuse can include problems at work or school, legal problems, relationship problems, and financial problems.

Signs of addiction include tolerance, withdrawal, cravings, and continued use despite negative consequences.

Behavioral signs are the most common sign of substance abuse, and can include changes in mood, behavior, and appearance.

Addiction, overdose, and death are all serious signs of substance abuse.

Education, prevention programs, and treatment are all important ways to prevent substance abuse.

Medication, therapy, and support groups are all important ways to treat substance abuse.

Substance abuse is a disease, it is treatable, and it can be prevented.

Physical signs of alcohol abuse can include jaundice, ascites, spider angiomas, and palmar erythema.

Behavioral signs of alcohol abuse can include increased aggression, blackouts, legal problems, and relationship problems.

Psychological signs of alcohol abuse can include depression, anxiety, suicidal thoughts, and hallucinations.

Social signs of alcohol abuse can include problems at work or school, financial problems, relationship problems, and social isolation.

Signs of alcohol addiction include tolerance, withdrawal, cravings, and continued use despite negative consequences.