How do physical symptoms differ between ADHD and anxiety disorders? 

Physical symptoms of ADHD and anxiety are key factors in differentiating between these two conditions, as they can often present similarly but have distinct underlying causes. While both ADHD and anxiety can lead to physical discomfort or symptoms, understanding how they manifest in each condition can help clinicians make an accurate diagnosis and provide appropriate treatment. 

Physical Symptoms of ADHD 

In ADHD, physical symptoms are typically related to impulsivity, hyperactivity, and restlessness. Individuals with ADHD may have difficulty sitting still, fidgeting, or squirming in their seats, which is often noticeable in children. These physical signs are a result of the brain’s difficulty regulating attention and controlling impulsive actions. Restlessness, excessive talking, and difficulty maintaining focus are common physical indicators, as the person’s body tends to remain in constant motion, reflecting the internal disorganisation associated with ADHD. 

Physical Symptoms of Anxiety 

In contrast, anxiety disorders tend to manifest physical symptoms that are a direct result of the body’s heightened state of arousal. Physical symptoms of anxiety include rapid heartbeat, shortness of breath, sweating, trembling, dizziness, and even gastrointestinal distress. These symptoms occur as the body responds to a perceived threat, triggering the fight-or-flight response. Unlike ADHD, anxiety symptoms are linked to nervousness or fear and often occur when a person is anticipating an event or situation that causes distress, such as public speaking or social interactions. 

Key Differences in Bodily Signs 

The key differences in bodily signs of anxiety and ADHD are:   

• ADHD: Physical symptoms are more about hyperactivity, impulsivity, and restlessness, often showing up as fidgeting or an inability to stay still. 

• Anxiety: Physical symptoms are typically linked to fight-or-flight responses, such as racing heart, shallow breathing, and sweating, triggered by worry or fear. 

In conclusion, physical symptoms of ADHD and anxiety can be differentiated by their underlying causes. While ADHD primarily involves hyperactivity and impulsivity, anxiety triggers bodily signs associated with fear or worry. Recognising these differences is key to providing the right treatment and support for each condition. 

Visit providers like ADHD Certify for personal consultations and expert guidance tailored to your unique situation. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Differential Diagnosis of ADHD.