A new documentary released today discusses a therapeutic protocol that helped 9/11 survivors recover from catastrophic toxic exposure when conventional treatments failed.

“SWEAT: The Untold 9/11 Story,” produced by Justin Glaser, author of the acclaimed book Sweat: Uncovering Your Body’s Hidden Superpower, investigates the comprehensive niacin-sauna detoxification protocol and its remarkable success in treating those exposed to the toxic aftermath of Sept. 11, 2001.

Through intimate interviews with 9/11 survivors, leading toxicologists, medical doctors, and pioneering researchers, this compelling documentary explores:

• The hidden crisis of environmental toxicity and its profound impact on neurological and physical health
• Why sweat-induced detoxification represents a critical missing component in contemporary wellness approaches
• The rigorous science validating sauna therapy now being embraced by medical innovators, performance scientists, and longevity experts worldwide

“The implications of this protocol extend far beyond helping 9/11 responders—it represents a fundamental shift in how we might approach chronic illness, environmental medicine, and mental health treatment. We’re witnessing the revitalization of an evidence-based approach that challenges our current healthcare paradgim," explained Dr. Devaki Lindsey Berkson, a prominent environmental medicine specialist featured in the film.

Announcing the documentary, officials wrote: "More members of the New York City Fire Department have now died from illnesses linked to 9/11 than were killed on the day of the attack itself. According to the FDNY Foundation, more than 400 FDNY members have died from World Trade Center-related illnesses as of September 2025, surpassing the 343 FDNY members lost on September 11, 2001. This is a truly sobering reminder that the health toll of that day is still being counted a quarter-century later, and the backdrop against which “SWEAT: The Untold 9/11 Story” is making its case."

"At Clearlight, we’ve spent nearly 30 years studying how the body heals itself when you give it the right environment, which includes heat, sweat, and time,” said Dr. Raleigh Duncan, founder of Clearlight and pioneer in infrared sauna technology, who appears in the documentary alongside the film’s featured toxicologists and researchers. “What happened with the 9/11 responders wasn’t a miracle; it was physiology: sustained infrared heat mobilizes toxins that get locked away in fat tissue and lets our bodies do what they’re built to do. This documentary puts on screen what we’ve believed at Clearlight since day one, and that is that sweat isn’t just detox; it’s one of the most powerful healing tools our bodies have.”