Attention Deficiency Hyperactivity Disorder ( Adhd )

Attention Deficiency Hyperactivity Disorder Introduction Attention deficiency hyperactive disorder (ADHD) is a brain-based genetic syndrome, which includes a lot of behavioral symptoms such as hyperactivity, problems with concentration and memorizing and impulsiveness and etc. A person with ADHD has a problem with regulation of some brain behavioral functions, which in common are called â€Å"executive functioning skills†. Nowadays ADHD is the most common behavioral syndrome in the UK. The exact figure of people with ADHD is unknown, but it affects near 2-5% of school-aged children and teenagers. [nhs.uk] In most cases the first symptoms of ADHD can be noticed in early age and they become more and more pronounced as the child grows†¦show more content†¦Combined type of ADHD is the most common one. It includes symptoms from both inattentive and hyperactive-impulsive ADHD. Aetiology The exact cause of ADHD is still unknown but there are some factors that can be responsible for this syndrome. Scientists believed that head and brain injuries or poor parenting can be the causes of ADHD, but there is no scientific proof for it. Also there was a hypothesis that excess of white refined sugar, food additives and lack of physical activities but it has not proven. In the last few years, when most of children become addictive to TV, doctors started to believe that television and video games can cause ADHD but it is also not scientifically proven. ADHD is caused by several differences in the brain and it is a result of genetics. Chemical differences and Genetics It is shown that people who have ADHD have problems with the work of neurotransmitters. The neurotransmitters help neurons to communicate with each other. This neurotransmitter difference is the main reason of three types of ADHD. ADHD is related to two neurotransmitters – dopamine and norepinephrine. People with predominantly hyperactivity-impulsive ADHD have altered dopamine transporter gene, which causes low levels of dopamine. In turn low levels of dopamine induce impulsiveness, excessive talking and bad behavior. People