In the pooled six-country study of income-preserving four-day weeks (Fan, Schor et al., Nature Human Behaviour 2025), workers reported improved mental and physical health, higher job satisfaction, and reduced burnout, with gains partly driven by reduced fatigue and fewer sleep problems.

Evidence (1)

Work time reduction via a 4-day workweek finds improvements in workers' well-being (Nature Human Behaviour 2025)

Income-preserving 4-day weeks boosted job satisfaction and mental/physical health and eased burnout; gains partly driven by improved work ability, reduced fatigue, and fewer sleep problems.

https://www.nature.com/articles/s41562-025-02259-6

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