Which common symptom may accompany generalized anxiety disorder (GAD)?

Generalized Anxiety Disorder (GAD) is characterized by excessive and uncontrollable worry about a variety of topics, which can significantly impact daily functioning. One of the common symptoms associated with GAD is sleep disturbances. Individuals suffering from this disorder often experience difficulty falling asleep, staying asleep, or having restful sleep due to persistent anxious thoughts and feelings. This can lead to fatigue, irritability, and an overall decrease in physical and mental well-being.

Sleep disturbances are a direct consequence of chronic anxiety, as the body's heightened state of arousal makes it challenging to relax and achieve restful sleep. The connection between anxiety and sleep is well-documented, with many people with GAD reporting issues such as insomnia or restless sleep patterns.

The other options do not reflect typical symptoms of GAD. Excessive talking is not a characteristic symptom of anxiety but may relate to other behavioral reactions. Hallucinations are more commonly associated with psychotic disorders rather than anxiety disorders. Increased energy levels generally do not align with the experience of anxiety, where individuals more often report feelings of fatigue due to the emotional and psychological strain. Thus, sleep disturbances are the most relevant symptom commonly seen in those with GAD.