Scientists Discuss How to Hibernate for Space Travel

Muscle Atrophy

Preventing muscle atrophy in space is a significant challenge for astronauts. Ryan Sprenger explains that studying natural hibernators like bears and ground squirrels can offer insights into maintaining muscle mass during extended periods of inactivity. These animals manage a balance between protein degradation and synthesis, even building new muscle during hibernation 1.

What we see in the hibernators is they actually do a little bit of both in torpor, so they'll decrease their degradation pathways and they'll increase their synthesis pathways.

--- Ryan Sprenger

Chuck Nice humorously suggests using electronic muscle stimulators, but Ryan points out that astronauts typically rely on resistance training to combat microgravity's effects 1.

   

Space Logistics

The logistics of maintaining a torpid state during space travel involve several practical considerations. Neil deGrasse Tyson and Ryan discuss the need for a controlled environment, like a pod, to manage CO2 levels and provide supportive fluids 2. In natural hibernation, animals periodically wake from torpor, a process that remains a mystery but may be crucial for human hibernation in space 2.

I think someone in a torpid-like state in space is going to need some sort of sequestering environment.

--- Ryan Sprenger

Additionally, the concept of hibernation in space is still in its conceptual phase, with NASA exploring its potential for long-duration missions to Mars 3.