
01
The Struggle
Darius Kane had logged twenty thousand flight hours and zero full nights of rest. Decades of red-eye routes and time zones left him wired and weary. He’d fall asleep mid-TV, wake at 3 a.m., heart pounding. His flight physicals showed HRV 22 ms, resting HR 98 bpm, Cortisol 25.8 µg/dL, DHEA 72, CRP 3.1. Every year, the turbulence inside worsened.

02
The Breaking Point
After forgetting a pre-flight checklist, a first in twenty years, he grounded himself voluntarily. In the quiet hotel room, he searched 'pilot stress biomarkers sleep recovery' and found Vitals Vault. “Measure what jet lag does to your biology.” He ordered the panel immediately, hoping data could restore what discipline couldn’t.

03
The Discovery







