Post-Flight Reconditioning Timeline (2D)

Landing is not the end of a spaceflight's physiological toll — it is the start of a weeks-to-months rehabilitation program. This simulator tracks four body systems an astronaut must recover after return: cardiovascular orthostatic tolerance, neurovestibular balance, musculoskeletal strength and bone mineral density, each modeled as its own exponential recovery curve with a time constant drawn from real post-flight reconditioning data. Set the mission's duration, how closely in-flight countermeasures were followed, and the intensity of the post-landing rehab program, then scrub or play forward through R+0 to R+400 days. A lane-race panel shows each system advancing toward its 90% clearance gate, while a linked chart panel plots the full recovery curves with a draggable playhead. Because bone recovers far slower than the other three, the simulator's "return to full duty" clearance is gated by whichever of the faster systems is still lagging — the same rate-limiting logic flight surgeons use when clearing a crew member, illustrating why the slowest track in a recovery program, not the average, decides when someone is ready.