The tests included measures of memory, attention, processing speed, and executive function. Cognitive function was assessed using a battery of standardized tests at baseline and at the end of the 4-week supplementation period. In addition, participants completed self-report questionnaires to assess their subjective experiences of cognitive function and overall well-being. Linda, a 35-year-old marketing executive, had always been interested in online gambling but was hesitant to try it due to ...