change in mood,
change in attitude,
change in their character,
Support system. your work out partner is supporting you by working out with you.
Tobacco use, alchohol consumption, physical activity and diet sexual practices, and disease screening.
Passive and intovert types of humans often like to be more alone and deal with one or fewer people in general as opposed to being and talking all around to every possible person they could find at a party or a bar, or just any place in general.
If you want to serve but don't want to be in combat, sadly your gonna have find another job unless you want to do infantry.
