According to Traci L. Toomey, Carolyn Rosenfeld, and Alexander C. Wagenaar in “The Minimum Legal Drinking Age: History, Effectiveness, and Ongoing Debate” from Alcohol Health and Research World, the Minimum Legal Drinking Age (MLDA) should stay up at 21 to help prevent alcohol-related problems among youth such as, injury and death, second-hand effects, and health issues. Science is and has contributed to the study of the effect of the MLDA laws. After states lowered the MLDA from 21 in the seventies, traffic crashes among teenagers increased greatly, so the government indirectly returned the MLDA to 21. Along with the MLDA, states created drinking policies to further reduce drinking rates concerning teenagers. In correlation with the MLDA being raised, there were notable declines in vehicle crashes and crash fatalities.…