Khaberni - A new study revealed that feeling mentally alert can significantly enhance what you achieve in your day, as researchers found that clear and effective thinking equates to about 40 additional minutes of productive work.
The study, conducted by a team from the University of Toronto Scarborough and published in the journal Science Advances, tracked participants over a 12-week period to understand why people sometimes struggle to follow through with their plans.
The results showed that daily fluctuations in mental alertness are the main factor. On days when individuals feel more mentally focused, they become more capable of setting and achieving their goals, whether in studying or simple daily tasks like preparing dinner.
Sindri Hutchinson, associate professor of psychology at the University of Toronto Scarborough and the principal author of the study, says: "On some days everything goes great, and on other days you feel like you are moving through fog. What we wanted to understand is why this happens, and how important these mental fluctuations really are."
Mental alertness measures how clear a person's focus and how efficient their thinking is at any moment. When it is high, it is easier for people to concentrate, make quick decisions, and accomplish tasks. When it is low, even simple activities may seem difficult.
Instead of comparing different people, the research team followed the same individuals over time, which allowed them to see how changes within one person affect their daily success.
All participants were university students, and they conducted daily short tests to measure the speed and accuracy of their thinking, and also reported on their goals, productivity, mood, sleep, and workload.
The results showed a clear pattern: on days when the students were more alert than usual, they achieved more goals and often aimed higher, especially in academic work. However, on days when their alertness decreased, even routine tasks became more difficult to accomplish.
These effects were consistent regardless of personality traits, as qualities like perseverance or self-control affect overall performance, but do not prevent people from having less productive days.
Hutchinson adds: "Everyone has good days and bad days, and what we are capturing is what separates the good days from the bad ones."
One of the most prominent findings of the study was the practical value of mental alertness. By analyzing cognitive performance over working hours, researchers estimated that being above or below your usual level of alertness can change your productivity by about 30 to 40 minutes per day, while the gap between your best days and your worst reaches about 80 minutes of work.
The study explains that mental alertness changes from day to day, and is not a fixed state. It was found that students are more focused when they sleep longer than usual, and also in the early morning hours, while their mental performance gradually declines as the day progresses. Excitement and focus increase alertness, while a depressed mood leads to its decline.
Workload showed a dual effect: working longer hours in a single day was associated with increased alertness, suggesting that people have the capacity to meet immediate demands. However, the downside is that extended periods of exhaustion reduce mental alertness, making maintaining productivity more difficult.
Hutchinson explains: "You can work hard for a day or two and be fine, but if you continue to work without any rest for too long, you will pay the price later."
Although the study focused on university students, the findings apply more broadly. Hutchinson suggests three things that can be done to maximize mental alertness: getting enough sleep, avoiding burnout over long periods, and finding ways to reduce the trap of depression.
