Is it possible to work just 4 days a week, be happier, more productive, and still make the same amount of money? That’s one of many questions Aidan Harper and other researchers at the New Economics Foundation and members of the 4 Day Week campaign are trying to solve in an effort to combat the problem of overwork, which is “leading to a crisis in mental health and well-being.”

The single biggest cause of work related stress, anxiety, and depression is overwork. So much so that last year one in four of all sick days was the result of overwork — which is huge proportion of sickness caused directly by overwork. In some ways, you can look at this statistic as a massive drag on the economy. Losing that many work days is very expensive but, more importantly, it’s also a huge societal malaise. Every day people are feeling the effects of overwork and this statistic doesn’t even take into account the number of people who aren’t taking sick days but are feeling generally burnt out and are just barely getting by.

To summarize — the 4 day workweek is a pragmatic response to a the problem of overwork that is leading to a crisis in mental health and wellbeing.

If you’re just off the heels of the recent honest conversation about burnout on JS Party, then you’ll certainly enjoy this interview with Aidan Harper,