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For years, Hollywood stars such as Jason Momoa and Chris Hemsworth and award-winning artists like Justin Bieber and Lady Gaga have plunged into ice cold water in the name of wellness.
The routine has become even more mainstream in recent years as highly-influential figures like Joe Rogan and Andrew Huberman have used their platforms to endorse the invigorating morning routine as a way to boost productivity, energy and mood.
But the practice goes back thousands of years, long before its TikTok virality, lending credibility to a routine that has raised more than few eyebrows among skeptics of fleeting trends.
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