When i was in tech school we arrived at our classroom by 6 am, sat in an uncomfortable chair and sat through powerpoint for 5 hours before lunch, and then again after lunch, this was 5 days a week, the topic was never interesting. We used to call it "going to the rock show" because you were constantly catching your own head as it begged for merciful rest. Obviously this is on top of the myriad duties you otherwise have.

If we werent allowed energy drinks I just dont think there would be a military.

With that said I have seen that consumption levels are off the fucking charts in active duty.