Final answer:
ADHD is a neurodevelopmental disorder characterized by inattention, hyperactivity, executive functioning difficulties, and impulsivity, affecting both children and adults. It can cause academic and behavioral challenges and often coexists with other conditions like depression or OCD.
Step-by-step explanation:
Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder that affects children and adults. According to the definition of ADHD, children and adolescents with the disorder show one or more of the following characteristics: inattention (lack of focus), hyperactivity beyond what is characteristic of the normal developmental stage, executive functioning difficulties, and impulsivity. It is a common misconception that ADHD is only a childhood condition, but it can continue and become a serious issue into adulthood. Furthermore, ADHD is often associated with comorbidities, such as depression or obsessive compulsive disorder (OCD).
Students with ADHD may experience academic difficulties, such as making careless errors, struggling to meet homework deadlines, and having trouble following instructions. This can affect their overall educational experience and can lead to frustration and other behavioral challenges both in the classroom and in daily life.