To support her argument Lang’s states that the amount of crashes occurred by alcohol has dropped since the drinking age was risen from eighteen to twenty-one. She gives references on how brain development is effected when a people is consuming alcohol before the brain is fully developed. Lang states “The impact of alcohol on a developing brain is far more acute than a mature one, as is the risk of addiction.” This would most likely convince the teenagers that started to drinking at young ages because they can be concern about their brain development which can affect their health. Lang then continues to discuss how when the drinking age was raise from eighteen to twenty-one, there was a decline in automobile crashes involving young people.