Have you ever had to deal with an alcoholic in your life? Can be really taxing mentally. Alcoholism is a big problem
Yes, my brother in law and sister in law both are alcoholics, both  have other mental issues also - bipolar.
strongly desired, usage results in not fulfilling responsibilities, usage results in social problems, usage results in health problems, usage results in risky situations, withdrawal occurs when stopping, and alcohol tolerance has occurred with use. Risky situations include drinking and driving or having unsafe sex, among other things. Alcohol use can affect all parts of the body, but it particularly affects the brain, heart, liver, pancreas and immune system. This can result in mental illness, Wernicke–Korsakoff syndrome, irregular heartbeat, an impaired immune
Harvey as well.
"Peterson's brother-in-law" excerpt.
My brother-in-law Peterson is the funniest fellow you ever saw in all your life. One night last week he went out to dinner with a friend of his by the name of Carlson, and both of them ordered steak. So the waitress served the two steaks on one big platter, and my brother-in-law Peterson was kind of hungry, I guess. Because he made a grab for one of the pieces