What is, in general, a depressant? It is a psychoactive drug, as it can affect the mood and perception, by acting on the central nervous system. A depressant is the substance that slows down or inhibits the functions of the central nervous system.
Well, many of us may think that alcohol is a pure antidepressant, that helps us calm down and relax our nervous system, but, in fact, it is exactly the opposite.
Alcohol affects brain very much like the other depressants such as, barbiturates, tranquilizers and benzodiazepines. It typically leaves you feeling worse than ever because it depresses the brain and nervous system.
Of course, in small doses, alcohol can help to relax the body and the mind. But, in large doses, it can bring about a significant change in the brain activities.
With his technical background, he's responsible for pretty much everything else involved in keeping this blog running (aside from writing).