Scientists are supposed to be trained to examine and make conclusions based on evidence, however, this is widely ignored when it comes to themselves rather than their object of study. A 2016 poll on the Nature website showed that about 70% of academics work more than 50 hours per week. The lack of a work-life balance was chosen as the biggest challenge for early career scientists by 19% of respondents and almost two thirds have considered leaving research. This is similar to previous results in a 2011 Nature poll where 65% of post-docs said that they worked over 50 hours a week.
In contrast to this behaviour, current research does not support the idea that longer working hours are more productive. One study, based on factory workers during WWI, showed that productivity is proportional to hours worked only to a certain point. Above 48 hours worked per week, productivity per hour sharply decreases. Because of the decreased productivity per hour over longer work weeks it can be that working fewer hours will cause an increase in productivity. Continue reading