Cognitive Performance Enhanced by Physical Activity Across the Lifespan Even short bouts of physical activity improve memory, focus, and mental clarity across every age group. Children show better attention and task persistence after 20 minutes of structured play....

Misuse increases risk by 14 times in adults aged 18 to 49 Among US adults aged 18 to 64 who use prescription stimulants, 9 percent meet criteria for stimulant use disorder. One in four report misuse, and 73 percent of those with stimulant use disorder have a history...