There was a study that was recently published in the Melbourne Institute Worker Paper, and it revealed that the people that are over 40 years of age, performed the best when they have worked three days per week.
The study involved 3.000 Australian men and 3,500 Australian women. The researchers have analyzed the work habits of the participants and they have tested the ability of the people to read words aloud as well as their ability to recite lists of numbers.
The first part of the test examined their thinking capabilities, such as executive reasoning, abstract reasoning, and memory, and the second part examined their “knowing” abilities. The scientists were able to conclude that the cognitive performance of the participants significantly improved when they have worked for 25 hours a week. But, this performance reduced greatly when they have worked for 55 hours per week, mainly because of tiredness and stress.
According to one of the authors of the study, the level of intellectual stimulation depends on the working hours. Work is a double-edged sword that can stimulate the activity of the brain, and working more than 55 hours per week can lead to fatigue and stress that will have a detrimental effect on the cognitive functions.
What is more, working hour differences play a great role in maintaining the cognitive functions in middle-aged adults and elderly, which means that in people that are in their middle ages and older, working part-time can help them maintain cognitive ability.
Working more than 30 hours a week, on the other hand, can negatively impact the brain health of the middle-aged adults.
The results from this study will most probably vary in different countries, because of the fact that is very hard to control each and every one of the factors that contribute to the final results of the study. The bottom line is that full-time work can have negative effects on the brain, in individuals over 40 years old.