The Cold Plunge Craze Has Arrived in New York, and It Is Transforming Morning Routines

NEW YORK -- At 6:45 on a Tuesday morning in Tribeca, a line of 11 people is waiting outside a storefront that was, until eight months ago, a dry cleaner. The space has been converted into Plunge NYC, one of a new category of wellness studios built around a single practice: the deliberate immersion of the human body in cold water, typically between 45 and 55 degrees Fahrenheit, for a period of two to five minutes. The line is not unusual. Plunge NYC has been at capacity or beyond for most of its morning slots since it opened, and its founder, a former investment banker named Jordan Sacks, said he is already scouting locations for a second outpost in the West Village.

Cold water immersion, sometimes called cold plunge or ice bathing, has a long history in Scandinavian and Russian wellness traditions and has been practiced by endurance athletes for decades as a recovery tool. What is new is its arrival in the American mainstream, driven by a convergence of social media content from athletes and wellness influencers, a popular podcast ecosystem that has elevated figures like Andrew Huberman to near-medical authority, and a post-pandemic consumer appetite for physical experiences that feel transformative. In New York, the trend has followed the city's characteristic pattern: a practice that began among a small community of committed practitioners -- in this case, open-water swimmers in the Hudson River and Coney Island's Polar Bear Club -- has been rapidly institutionalized and priced accordingly.

A single session at Plunge NYC costs $38 and lasts 45 minutes, including a ten-minute guided breathwork practice before the plunge and a ten-minute warming period afterward. A monthly membership runs $165 for unlimited sessions. The studio's data, which Sacks shared selectively, shows that the median member visits 11 times per month -- a frequency that suggests the practice is functioning less as an occasional wellness treat and more as a daily or near-daily ritual. Members interviewed at the studio described the effect in terms that ranged from the physiological -- reduced inflammation, improved sleep, faster recovery from exercise -- to the almost mystical: a daily confrontation with discomfort that, they said, made everything else feel easier.

The scientific evidence base for cold water immersion is real but more modest than the wellness industry's claims. Peer-reviewed research supports its efficacy for reducing post-exercise muscle soreness and inflammation, and some studies suggest benefits for mood regulation through cold-induced releases of norepinephrine. Evidence for the broader claims -- improved immune function, enhanced metabolism, extended lifespan -- is thinner and more contested. Sports medicine physicians interviewed for this article said the practice is generally safe for healthy adults but cautioned against the tendency to treat anecdote and influencer testimony as equivalent to clinical evidence. For most practitioners, they suggested, the greatest benefit may simply be the discipline of doing something hard every morning before the day has a chance to complicate things.