How Plunging Into Frigid Water Can Improve Mental Health

At HigherDOSE, we’re all about getting hot and sweaty and biohacking our health from inside of a sauna. A frigid cold pool is an entirely different story. On this episode of Biohack-HERS, HigherDOSE Founders Lauren Berlingeri and Katie Kaps are up to exactly that as they take the plunge into temperature contrast therapy, aka the Fire and Ice Challenge. 


For this biohacking treatment, Lauren and Katie turn to Cyce Kolodney, an XPT Coach at Bathhouse in New York City, where they will experience what it’s like to dunk themselves in a bath that is so cold that it causes the body to go into shock and pain, followed by a sauna session for temperature contrast. 


The Fire and Ice Challenge is a temperature contrast therapy experience where you spend three minutes in a freezing 50-degree bath followed by 10 minutes in a 185-degree sauna. This wellness concept has existed for centuries and the intense shock experienced during the session is believed to boost the immune system, reduce inflammation, strengthen heart function, and help muscles recover faster. It’s also an incredible mood booster and leaves you feeling a natural high.


Ahead of the experience, Lauren and Katie went through several rounds of intense breathwork in order to prepare for the chilling ice plunge. Cyce took them through a few different breathing techniques, including cadence breathing and apnea breathing. Cadence breathing helps connect to and relax the nervous system while apnea breathing helps increase Co2 tolerance. After that, they were ready for head-to-toe recovery.


Ready to see what the Fire and Ice Challenge is really about? Watch as Lauren and Katie take the plunge in the latest episode of Biohack-HERS, out now. 


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About the Author

Fiona Hillery is a seasoned VP of Communications with over a decade of experience bridging media, wellness, and holistic healing. With a career rooted in brand storytelling, public relations, and cultural strategy, she has led communications for industry powerhouses like Vice Media and The History Channel, where she crafted high-impact campaigns that drove brand awareness and audience engagement. Currently, Fiona serves as Vice President of Communications at HigherDOSE, a trailblazing wellness brand renowned for its celebrity-loved infrared products and experiential wellness events. Her approach blends strategic foresight with intuitive insight, allowing her to craft authentic, soul-centered narratives that resonate with modern audiences and amplify brand influence. Beyond her executive role, Fiona is a creative visionary and thought leader in the wellness space. As a spiritual guide, writer, and event curator, she bridges her deep knowledge of holistic healing with her expertise in media and communications. Her passion for authentic storytelling is reflected in her work curating large-scale wellness events, consulting on brand strategy for conscious businesses, and producing editorial content on spirituality, cultural evolution, and wellness trends. With an unparalleled ability to merge intuition with business acumen, Fiona Hillery is dedicated to helping brands, communities, and individuals tell meaningful stories that inspire collective transformation and lasting impact.

Fiona Hillery - VP of Communications

Fiona Hillery

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