Some children with attention deficit disorder only manifest two symptoms, or even one. To be diagnosed with ADHD a child does not have to have all three symptoms. There is great debate over whether some diagnosed children have ADHD at all, or are just suffering from trauma and post-traumatic stress disorder (PTSD), which can cause similar looking symptoms.ĪDHD in children has three main symptom groups – hyperactivity, impulsivity, and inattention. Of course this is not always true, but statistics do show that children with ADHD have a higher chance of coming from an upbringing where they are exposed to poverty, violence, abuse, and/or parents who are divorced or who abuse substances. Trauma has now been proven to affect the growth of the brain, and many children and adults who manifest ADHD come from an unstable upbringing that involved difficult events. This can begin at the very start of a child's life – complications before and during birth are thought to be related, including low birth weight, a mother experiencing high stress while pregnant, and medications, or drugs and alcohol, taken during pregnancy.Ĭhildhood trauma is increasingly connected to ADHD. Other biological reasons that research has suggested include certain areas of the brain being different sizes compared to the brains of people who don't have ADHD, or that levels of neurostransmmitters are different.Įxperiences in early childhood are very often a contributing factor to an individual developing ADHD. This theory seems to be supported by studies that show ADHD does run in families, with around one third of ADHD sufferers also having a parent with symptoms of the condition. It is thought that a defect in a certain gene that affects the brain could be a contributing factor of some cases of ADHD, although the research proving this was done only on mice. Like most psychological disorders, ADHD can't be pinned down to one thing, but tends to be caused by a combination of things that include genetic, biological, and environmental factors, and causes will vary by individual.
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