A study conducted by researchers from the University of Toronto, Scarborough, examined the impact of mental sharpness on productivity among 184 university students over 12 weeks. The results indicated that during periods of heightened mental clarity, participants experienced a productivity boost equivalent to an additional 40 minutes of work for each day. Students reported that days characterized by mental acuity facilitated not only academic tasks but also personal goals, such as preparing meals and completing assignments.

Each participant was tasked with completing six cognitive challenges daily, which included memory tasks and impulse control exercises. Their performance on these tasks served as an indicator of their mental sharpness on that specific day. Moreover, they were asked to set two measurable goals for the following day, which they would evaluate against their actual achievement rate at the day's end. The average goal achievement rate was reported at 62%, although students felt they only met half of their intended targets, indicating a gap between perceived and actual productivity.

The study also sought to further understand how various factors like mood, sleep quality, and motivation influenced mental acuity. This aspect of the research underscores the importance of psychological and physiological conditions on productivity, suggesting that strategies for improving mental sharpness can have practical implications, such as focusing on better sleep and fostering a conducive environment for cognitive performance.