[malux85]

Correct

In the NASA article they say that it could be attributed to the lower caloric intake and increased exercise

https://www.nasa.gov/feature/how-stressful-will-a-trip-to-ma...

[adrenalinelol]

Aren't both of those activities more endemic in generally healthy people anyway (tend to live longer)? It'd be a bit of a stretch to say that it'll improve the genetic variables effecting your lifespan.