1. Describe the features and problems of the misuse of barbiturates and benzodiazepines. a. Barbiturates are viewed as safe depressants. The addictions and deadly overdoses become apparent and they have an impact on sleep patterns, and it results in suppressed REM sleep. b. Benzodiazepines are used as a short term treatment for anxiety and insomnia. 2. Compare the various opioids (opium, heroin, morphine). What problems may result from their use? c. The biggest problem that results from the use of opioids is addiction. 3. List and compare two kinds of stimulant drugs. Describe their biological actions and the problems caused by each of them. d. Amphetamines and cocaine both increase alertness and physical activity. Cocaine interferes with the levels of the neurotransmitter serotonin 4. Why has cocaine use become a major problem in recent years? e. Cocaine has become a major problem in many American cities because it is inexpensive and easily transportable 5. What are the effects of hallucinogens, particularly LSD? f. The effects pretty much vary for any person. Some people may need more or less of the drug. The effects that hallucinogens have are blurred vision, increased heart rate, nausea and vomiting, dizziness, numbness, and many others. The effects that LSD have on an individual are, dry mouth, sweating, tremors, loss of appetite, and increased blood pressure. 6. What special problems