Prince William has adopted his wife Catherine's extreme cold-water swimming routine – a practice she believes helps her body manage shock and stress as she continues preventive health measures following her cancer diagnosis.

RadarOnline.com can reveal the move marks a notable shift for William, 43, who once dismissed the hobby as too harsh to enjoy. Article continues below advertisement

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Catherine, also 43, revealed in 2023 she relished plunging into icy lakes and seas, even in darkness or poor weather – an admission made during a joint appearance with William and Princess Anne on the podcast The Good, The Bad

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