Which of the following are the three main symptoms of ADHD?

• A. Memory loss
• B. Hyperactivity, impulsiveness, inattention
• C. Sleep disturbances
• D. Mood swings

Answer: (B)

ADHD is defined by three core features: hyperactivity, impulsivity, and inattention. Hyperactivity shows up as excessive movement, restlessness, and a constant need to be moving or fidgeting. Impulsivity involves acting without thinking, interrupting others, and having difficulty waiting or delaying gratification. Inattention means trouble sustaining focus, following instructions, organizing tasks, and remembering details. Together, these three areas form the hallmark pattern used to describe ADHD and to differentiate it from normal childhood energy or other issues. Memory loss, sleep disturbances, and mood swings can occur with various conditions or as secondary effects, but they are not the defining triad of ADHD.