Which of the following is a sign of anxiety in isolation?

Excessive sleeping during the day can be a sign of anxiety in isolation because anxiety often manifests in sleep disturbances. When individuals feel anxious, they may experience heightened stress levels that can interfere with normal sleep patterns, leading to feelings of fatigue and the urge to sleep more during the day to cope with overwhelming emotions. This need to escape or find relief often results in increased daytime sleeping as a response to the psychological toll of the isolation and anxiety.

In contrast, silent contemplation typically signifies a more reflective state rather than an anxious one, heightened focus on tasks suggests an individual is concentrating and might be in a productive mental space, and increased physical activity could be an outlet for managing anxiety, which generally results in positive coping mechanisms rather than indicating anxiety itself.