Spaceflight exposes the human body to extreme, compounding stress, driving circadian misalignment, muscle atrophy, and immune dysregulation. To establish objective biological tracking for future commercial crews, Starlab Space and Summa are concepting a tailored monitoring protocol to provide direct endocrine feedback.
This protocol adapts Summa’s next-generation station for in-orbit operations. Tracking the T/C (testosterone-to-cortisol) ratio reveals exactly how astronauts respond holistically to the demands of extended spaceflight. This early detection of physiological drift will provide mission command with actionable insights to proactively adjust exercise, sleep, and workload – safeguarding long-term crew health, immune stability and physiological resilience during missions.