Three applications drive hyperbaric chamber adoption among Atherton’s performance-focused households, and they reinforce each other rather than competing. The jet lag application is the most immediately practical: long-haul travel to New York, London, or Tokyo creates circadian disruption and inflammatory load that sleep alone doesn’t fully resolve. A 60–90 minute HBOT session on the day of return compresses the recovery window significantly — elevated oxygen delivery to neurological tissue and the anti-inflammatory cascade that HBOT initiates address the specific mechanisms that make jet lag persist. The longevity application builds across months of consistent use: the Tel Aviv cognitive and cellular aging research, replicated across multiple subsequent studies, associates consistent HBOT protocols with telomere lengthening, reduced senescent cell burden, and measurable improvements in cognitive performance. For Atherton residents who track their biological age and are building protocols around evidence, HBOT addresses a primary longevity pathway — mitochondrial function and cellular stress resilience — that other wellness modalities don’t directly target.