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.
It is a health condition involving biologically active substances in the brain. Studies show that ADHD may affect certain areas of the brain that allow us to solve problems, plan ahead, understand othersâ actions, and control our impulses. The primary symptoms of ADHD are hyperactivity, impulsivity, and inattention.