They don't stand for anything. KISS is not an acronym; it means nothing more than the word kiss. And it certainly does NOT stand for Knights In Satan's Service. See the â¦ Related Link below. Absolutely nothing. They wanted an inflammatory name with four letters, and because they couldn't have the f-word they picked Kiss as the next best.
The symptoms of ADHD appear to arise, on average, between 3 and 6 years of age, particularly for the subtypes of ADHD associated with hyperactive and impulsive behavior. Others may not develop their symptoms until somewhat later in childhood.
There were some changes in the DSM-5 for the diagnosis of ADHD: 1  Symptoms can now occur by age 12 rather than by age 6; 2  Several symptoms now need to be present in more than one setting rather than just some impairment in more than one setting; 3  New descriptions were added to show what symptoms might look like at older ages; and.