What is Attention deficit/hyperactivity disorder and autism spectrum disorder. ADHD or Attention deficit hyperactivity disorder is defined as difficulty staying focused and paying attention, difficulty controlling behavior, and hyperactivity (over-activity), whereas ASD or Autism spectrum disorder is characterized by: persistent deficits in social communication and social interaction across multiple contexts, restricted, repetitive patterns of behavior, interests, or activities. Symptoms of ASD must be present in the early developmental period typically recognized in the first two years of life and, symptoms cause clinically significant impairment in social, occupational, or other important areas of current functioning. ADHD is characterized…