Long working hours negatively affect cognitive performance.
Related:
- The optimal amount of free time seems to be between 2 and 4 hours per day
 - Modern work is unconfined work
 - Large organizations extinguish employees' passion
 - A four-day workweek improves employee well-being without reducing productivity
 - Explore a map for each month’s cycle that not only includes things to do, but also things to avoid
 - Try to get four hours of concentrated work into a workday, and never more than six
 - “Revenge bedtime procrastination” is the deliberate delay of bedtime to regain control