LONDON — It may be winter and there may be a biting chill in the air, but the dozen men and women who have packed this small sauna room in east London are happily sweating away in their swimwear. It’s ...

A "sauna craze" has gripped the UK. Almost 100 "hot, sweaty saunas" have cropped up across the country in recent years – the "perfect counterpart" to cold-water swimming. Despite having a legion of ...

LONDON, UK — It may be winter and there may be a biting chill in the air, but the dozen men and women who have packed this small sauna room in east London are happily sweating away in their swimwear.

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