patterns in overall study results On the negative side, studies show that some former military brats struggle to develop and maintain deep, lasting relationships, and can feel like outsiders to U.S. civilian culture. The transitory lifestyle can hinder potential for constructing concrete relationships with people and developing emotional attachments to specific places, as can the stresses of having a parent deployed to a war zone and also the psychological aftermath of war in dealing with returning veteran parents. In some cases there is also the loss of a parent in combat, or a drastic change in a parent due to a combat related disability. A military brat may personally know another child or teenager, or even a few other peers, whose parents have become war casualties (wounded or killed). A significant minority of ex-military brats may exhibit symptoms of posttraumatic stress disorder, avoidant personality disorder, separation anxiety disorder, etc. Specific study areas Mobile lifestyle preferences Although neither a clearly negative or positive trait, studies also show that many adult military brats report difficulty settling down in one geographic location and also report a desire to move (relocate) every few years; many adult military brats call this "the itch". However, some adult military brats report the opposite tendency and relate refusing any and all pressures from spouses or employers to ever move again. Perfectionist tendencies Many former military brats report struggling at some point in their lives with issues related to perfectionism and learning how to let go in areas of personal performance (perhaps due to the demanding nature of military culture). Paradoxically, a majority of those very same military brats who report having struggled with perfectionism and performance control issues also describe themselves as being successful in their lives, indicating a resilience that also surfaces in overcoming or learning to manage those issues in the long run. Adaptability and outsider feelings Overall a majority of military brats report having developed a kind of extra-adaptability and assimilate into new situations quickly and well, as they have done with each move to a new military base, town or country. Yet paradoxically, long-term feelings of being an outsider in relation to civilian (non-military) culture are common to a majority of military brats. Military culture A significant percentage of military brats report difficulty in forming strong relations with people or places, but very often do form strong connections with (or in some cases aversion