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Cold showers cut sick days by 29%

A 2025 PLOS ONE analysis of 3,177 people confirmed that regular cold shower exposure reduces workplace sickness absence by nearly one-third.

More bite-sized facts

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Your skin has three mineral entry points

Minerals slip between cells, pass through cells, or travel down hair pores. All three pathways work together when you're in seawater.

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Water.Day_town with frozen river
Water is the only substance that expands when it freezes

Frozen water expands 9%, cracking pipes and splitting rocks—but it also makes ice float, keeping fish alive.

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Water.Day_woman with blue sky umbrella
The prediction advantage

Scientists can predict El Niño and La Niña several months to a year in advance using modern climate models.