What condition is marked by a heightened state of anxiety or restlessness?

Akathisia is characterized by a heightened state of anxiety or restlessness, often manifesting as an inability to remain still or a constant need to be in motion. Individuals experiencing akathisia frequently report feelings of inner tension and distress, which can lead to significant discomfort and agitation. This condition commonly occurs as a side effect of certain medications, particularly antipsychotics, but can also be seen in other contexts.

While anxiety disorder might seem like a plausible choice since it also involves anxiety, akathisia specifically emphasizes the physical restlessness component that can accompany heightened anxiety. Akinesia refers to a loss or impairment of voluntary movement, rather than anxiety. Anosognosia is a condition related to an unawareness of one’s illness, particularly common in brain injuries, but does not involve anxiety or restlessness. Thus, akathisia is the most accurate answer to describe heightened anxiety or restlessness.