Mr. Smith is an alcoholic. There is an unspoken rule in his family that everyone should work to protect his emotions. This unspoken rule exerts significant influence on patterns of interaction in the family. According to Minuchin, this unspoken rule is an example of:

hereditary rules

Explanation:

Some addictions are family genetics and as well as many persons in that family might suffer the same problem, this subject is very difficult to talk about or to share advises, so this behavior of protecting emotions and do not talk about alcoholic addiction can be seen as an unspoken rule.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )