Deployment on a nuclear submarine is crazy. I went months without contact from anyone. We did some insane missions though and you have a high sense of purpose that what you’re doing matters for national security. My typical day: 1. Wake up in my rack that was next to 8 other guys in between the missile tubes 2. Workout. Bench/squat. We had pullup bars between the missile tubes and the treadmill gave you a sick view of all the missile tubes. 3. Mission stuff 4. Go to bed and repeat over and over. No windows and no sunlight. That’s the basic gist. Mind you, that’s all happening inside a 560 FT metal tube powered by a nuclear reactor speeding through the ocean loaded with a lot of ordnance.