Can chronic anxiety mimic ADHD attention issues?

Concentration difficulties are common and significant symptoms in both ADHD and anxiety, but clinicians try to understand why someone is experiencing attention issues. While it can feel similar from the inside, the drivers are often different, and careful history-taking usually clarifies this over time. In ADHD, inattention tends to be longstanding and situational. It often starts in childhood and is most noticeable during tasks that require sustained attention, sitting still, or mental effort. Thoughts may jump quickly between topics, but they are not necessarily threat-based or worry-focused. In anxiety, inattention is more closely tied to physiological arousal and worry. The thoughts are often racing and about potential problems, “what if” scenarios, or a sense that something bad might happen. The inattention is typically driven by fear or anticipation and it may persist even when a person wants to relax. Clinicians look at the timing, triggers, thought content, and emotional tone of the attention issues, as well as associated symptoms such as sleep disturbance, avoidance, or physical anxiety symptoms. Importantly, this is not always an either/or decision. People can have both ADHD and anxiety, and distinguishing their relative contributions may require repeated assessments over time, observation of response to treatment, and psychological formulation rather than a single appointment.