Introduction, sensual drug abuse; The brain, the senses, and pleasure; Action of sensual drugs; Hazards of sensual drugs; Addiction and dependency; Sexual deprivation; Drug abuse among American soldiers in Southeast Asia; Rehabilitation; Mind expansion; Marijuana; Effect of drugs on mental state; Fate of Marijuana in the body; Some information about opiates; Drug use among patients in treatment clinics; Some observable signs and symptoms of drug use; Rehabilitation of sexual functioning as an incentive to stop drug use; US Senate hearings on world drug traffic; US Senate hearings on marijuana and hashish; THC: two animal studies; Cannabis seizures; Mortality rate and drug abuse.