Which sign could indicate a Marine is experiencing psychological stress?

Difficulty falling asleep is a common sign that a Marine may be experiencing psychological stress. When an individual is under stress, it can lead to heightened anxiety and racing thoughts, making it challenging to relax and wind down at the end of the day. This inability to fall asleep, or disrupted sleep patterns, can be a significant reflection of one’s mental and emotional state.

In contrast, increased social engagements, improved focus on tasks, and increased physical activity typically suggest positive coping mechanisms or shifts in behavior rather than stress. While some might think that increased physical activity could be a sign of managing stress, it is not as directly indicative as sleep disturbances. Thus, recognizing difficulty in sleep is a crucial factor in identifying psychological stress.