In case some of you haven't noticed . . . most of the dead soldiers and Marines are males under 30. Speaking from experience (before the married with kids), reasonably frequent sex (with a woman) was rather important. Silent Sam can attest to how easy that was in Chapel Hill.
Obviously, life for service people in Iraq sux on multiple levels but it's not like they spend 24/7 on patrol. During those all too infrequent intervals of reasonableness, I'm sure a few guys (and gals) would say swimming, watching movies, hitting the weights, going for a run, listening to music, and even calls to the states are GREAT . . . BUT . . .