People Aged Over 40 Perform Best With A Three-Day Working Week, Study Finds

A three-day-week gets the best performance from workers aged over 40, say researchers who found the cognitive performance of middle-aged people improved as the work week increased up to 25 hours a week. But, when the week went over 25 hours, test subjects’ performance decreased as “fatigue and stress” took effect. The Melbourne Institute Worker Paper series report, tested 3,000 men and 3,500 women in Australia to complete a series of cognitive tests. The findings?… working 25 hours a week performed best while those working 55 hours a week showed results worse than retired or unemployed participants. One of its authors, Professor Colin McKenzie notes many countries plan to delay the eligibility age to start receiving pensions, so more people continue to work in the later stages of their life. While work can stimulate our brain activity, long working hours can cause fatigue and stress, which may damage cognitive functions and that in middle and older age, simply working part-time could be effective in maintaining our cognitive ability. I like it, a three day work week… but do we still get paid for five?

(Source: Matt Payton,; Image:

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