Ms. Roach focuses on what it’s like to be in space – hungry, tired, smelly, sleep deprived, sex deprived, and asks questions like how do astronauts poop?

The book covers what it takes to keeping soldiers effective in the field. The author mostly concentrates on science and technology, but touches on policy as well. Actually, she is more amazed by the policy and how it has been implemented, but that’s a small part of the overall narrative.