ADOLESCENTS ARE MORE SENSITIVE THAN ADULTS TO ALCOHOL'S MEMORY-IMPAIRING EFFECTS. Among its many effects on the brain and brain function—such as impairing balance, motor coordination, and decisionmaking—alcohol interferes with the drinker's ability to form memories.
Drinking is more harmful to teens than adults because their Brains are still developing throughout adolescences and will into young adulthood. Drinking during this critical growth period can lead to lifelong damage in brain functions, particularly as it relates to memory, motor skills ( ability to move) and coordination.