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Four-Day Week: The Evidence Keeps Piling Up

Four-Day Week: The Evidence Keeps Piling Up
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The four-day workweek keeps passing its tests. A new review of the top 50 studies on shorter working weeks found overwhelmingly positive results for health, performance and workplace culture.

The numbers are striking. Ninety-one per cent of the studies found drops in burnout, stress and anxiety. The same share reported better work-life balance. Eighty-one per cent saw less fatigue or better sleep.

Good for business too

Employers have reasons to listen. Eighty-six per cent of studies saw higher job satisfaction. Seventy-five per cent reported better productivity. Two-thirds saw stronger team spirit.

Staff also stayed longer: 68 per cent of trials saw better retention. And at least half the companies kept the shorter week permanently, with no one forcing them to.

The idea has travelled far. Trials have run across Europe, North America and parts of Asia, in industries from banking to brewing. Results have been strikingly similar in each place. In several countries, trade unions have added the four-day week to their list of demands.

What comes next

An extra day off gives people time to rest, see family and look after their health. The evidence suggests the old five-day model is no longer the only serious option.

Critics argue the model does not suit every job. Hospitals, factories and shops cannot simply close an extra day. Supporters answer that shorter shifts or shared rotas can bring similar benefits. The debate is far from over, but the data has shifted it.

The four-day week is no longer just an idea. For many workers, it is already reality.

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