In times of life crisis, whether wild fires or smoldering stress, the first thing I do is go back to basics... am I eating right, am I getting enough sleep, am I getting some physical and mental exercise everyday.
Back in those days intimidation was the greatest tool the drill instructor had. Without that tool, he would not have had control.
That is really not much different from the search engines that are being constructed today for users throughout the entire world to allow them to search through databases to access the information that they require.