Drinking alcohol before the age of 21 can have negative health, behavioral, and social consequences. It can damage brain cells and memory, leading to problems with understanding and cognition. It increases the risk of car accidents, as teens who drink are twice as likely to be in crashes. Drinking is also linked to risky sexual behaviors and assault. While some argue the drinking age should be lowered to match smoking and voting ages, high-risk behaviors associated with alcohol like driving and sexual assault are not issues with those activities. Therefore, maintaining the legal drinking age at 21 helps reduce various health, safety, and social problems.