Yes, it is possible for someone to have hyperactive ADHD without being impulsive. Inattention, hyperactivity, and impulsivity are the three main subtypes of ADHD, and individuals can present with different combinations of these symptoms.
ADHD has three primary presentations:
Predominantly Inattentive Presentation: This type is characterized mainly by symptoms of inattention. People with this subtype may have difficulty sustaining attention, following through on tasks, staying organized, and often seem forgetful.
Predominantly Hyperactive-Impulsive Presentation: This type is characterized mainly by symptoms of hyperactivity and impulsivity. Individuals may be excessively restless, have difficulty sitting still, act without thinking, and have a tendency to interrupt others.
Combined Presentation: This type involves a combination of symptoms from both inattention and hyperactivity-impulsivity categories.
Therefore, someone could have hyperactive ADHD (predominantly hyperactive-impulsive presentation) and not be impulsive. They might exhibit the hyperactive aspects of the disorder, such as restlessness, fidgeting, and excessive talking, but not necessarily the impulsive behaviors like acting without thinking or interrupting others.
It's important to remember that ADHD is a complex and heterogeneous disorder, and each individual's experience may vary. Diagnosis and understanding of ADHD should be done by a qualified healthcare professional or mental health specialist who can assess the person's symptoms and provide appropriate support and treatment.