Which of the following is a mental state often experienced due to prolonged hypervigilance?

Extreme fatigue is a common mental state that arises from prolonged hypervigilance. Hypervigilance involves being in a constant state of heightened alertness and is typically associated with stress responses, often seen in individuals who have experienced trauma or are in high-stress environments. This intense focus and vigilance can be mentally and physically exhausting, leading to diminished energy levels and feelings of fatigue over time.

In contrast, increased energy and heightened social engagement would indicate a more positive mental state and are generally not associated with the exhaustion brought on by hypervigilance. Decreased responsibility does not align with the effects of hypervigilance either, as individuals may feel an increased burden or obligation due to their heightened awareness. Thus, extreme fatigue is the most appropriate state linked to the prolonged state of hypervigilance.