Companies from Microsoft to Shake Shack have experimented with a four-day workweek to improve productivity and work-life balance.

Some of these companies have said the shorter week has made it easier to focus on important tasks.

Others, like educational coding startup Treehouse, found that it made it challenging to uphold a solid work ethic.

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With the rise of popular work chat apps like Slack and easy access to corporate email 24/7 through our smartphones, breaking away from work can feel more difficult than ever.

At the same time, employee burnout appears to be on the rise.

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