Discuss the major categories of drugs (Depressants, Stimulants, Cannabis and Opiates) and alcohol.

Discuss the major categories of drugs (Depressants, Stimulants, Cannabis and Opiates) and alcohol.  What are the physical and psychological effects of each drug? Provide examples of the consequences for each category of drugs and alcohol. Cite the online course, the textbook, and other credible, scholarly sources to substantiate the points you are making. 250 word minimum