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Health, Longevity & Biohacking

Hydrogen Gas Increased Cardiac Arrest Survival from 61% to 85% in Japanese Clinical Trial

The Ultimate Human · 265. Tyler LeBaron: Hydrogen Water, Mitochondrial Health, Selective Antioxidants, & Longevity · May 11, 2026
Hydrogen Gas Increased Cardiac Arrest Survival from 61% to 85% in Japanese Clinical Trial
The Ultimate Human
The Ultimate Human
265. Tyler LeBaron: Hydrogen Water, Mitochondrial Health, Selective Antioxidants, & Longevity
"In the control group, there was a 61% survival in the standard treatment group. And in the hydrogen group, it was an 85% survival. So if you had 100 subjects, 61% survived with standard treatment, 85 lived. These people are alive because of hydrogen gas."
Dr. Tyler LeBaron revealed results from a Japanese clinical trial across 15 hospitals where 2% hydrogen gas inhalation increased 90-day survival rates in post-cardiac arrest patients from 61% to 85% compared to standard treatment alone. The study also showed neurological score improvements increased from 39% to 56%. This represents 24 additional lives saved per 100 patients, prompting the Japanese government to approve hydrogen as a Class 2B medicine for cardiac arrest treatment research.

About this episode

On this episode of the Ultimate Human Podcast, host Gary Brecka was joined by Dr. Tyler LeBaron, who holds a PhD in molecular hydrogen research and has published over 50 peer-reviewed papers in the field. The conversation centered on why molecular hydrogen—not alkalinity—is responsible for the therapeutic benefits attributed to alkaline water, and how hydrogen functions as a unique 'selective antioxidant' and 'redox adaptogen' that targets only harmful free radicals while preserving beneficial oxidative signaling in mitochondria. LeBaron revealed striking clinical trial results from Japan showing 2% hydrogen gas inhalation increased 90-day survival in post-cardiac arrest patients from 61% to 85%, representing 24 additional lives saved per 100 patients. He explained how his team identified hydrogen's specific target in mitochondrial complex III—the RISC-A iron-sulfur protein—which triggers a hormetic stress response leading to mitochondrial biogenesis and improved ATP production. The discussion systematically debunked alkaline water marketing, with LeBaron detailing comprehensive review research proving all benefits disappear when dissolved hydrogen is removed. Brecka and LeBaron explored practical applications including athletic performance enhancement, delayed onset muscle soreness reduction, metabolic syndrome improvements, weight loss via increased FGF21, and anti-inflammatory effects. LeBaron cautioned that while over 1,500 studies exist, many are preliminary, emphasizing the importance of informed consent and realistic expectations. He contrasted hydrogen with conventional antioxidants like vitamin C and beta-carotene, which can blunt exercise benefits and even increase mortality in some populations. The episode concluded with practical guidance on hydrogen tablets, inhalation protocols, and bathing applications, with LeBaron stressing that hydrogen does not impair exercise performance and may act as an exercise mimetic by increasing PGC-1α levels beyond exercise alone.

Key takeaways

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