All of these behaviors can also come from an inherited ancestoral source. The inherited behavior may come from parents, grand parents or even great grandparents.
Addiction is commonly an inherited trait.
A workaholic grand father can influence his child to become an alcoholic who's child may become addicted to drugs. Addiction is often a replacement for parental domination and control. We look at an addiction as anything that is used to withdraw from self. The commonly recognized addictions are alcohol, drugs, work and sex. Other addictions that should be considered are addictions to control, inadequacy, relationship rejection and perfectionism.