ScienceDaily (2010-06-01) -- Impulsivity normally decreases during emerging and young adulthood and is associated with reduced substance abuse. Not all individuals, however, "mature out" of impulsive behavior. A new study has found that 18-to-25-year-olds exhibited the largest declines in impulsivity as well as the sharpest decreases in alcohol consumption.
. Developmental Trajectories of Impulsivity and Their Associations with Alcohol Use and Related Outcomes during Emerging and Young Adulthood I. Alcoholism: Clinical & Experimental Research, August 2010