Chemical Dependency

The term chemical dependency is described as a person who has a drinking or a drug problem. This is called substance abuse, which can cause the negative impact to their health, relationship and social life. According to the text bio/psycho/social is made up 3 families histones methylation (block expression) acetylation ( activation) and phosphorylation (unknown) molecular of our gene. This gene exposes the environment assist us in dealing with stress from day to day issues. When these compounds are affected by chemical it is called a disease. As a human, we were born with neurotransmitter, which helps our body system to survive everyday life. So when a human used drugged or drink if affected their feeling, pleasure, and sense of ability to