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The hypothesis seeks to explain the "hyperfocus" aspect of ADHD, the distractibility factor in ADHD, the short attention span individuals with ADHD have for subjects that do not interest them (which may or may not trigger hyperfocus), and various other characteristics related to ADHD (namely, hyperactivity and impulsivity). [2]
ADHD has a prevalence rate of around 5-12% in children residing in Spain. The rate for adults in Spain is an estimated 0.5-5%. The reason for this low estimated prevalence rate of ADHD in adults could be due to underreported numbers within the older age range. [28] Rates in Spain are estimated at 6.8% among people under 18. [29]
Physiological factors and mechanisms influence by oxidative stress are believed to be highly influential to autism risk. Interactions between environmental and genetic factors may increase oxidative stress in children with autism. [130] This theory hypothesizes that toxicity and oxidative stress may cause autism in some cases.
A 2020 review found that creativity may be associated with ADHD symptoms, particularly divergent thinking and quantity of creative achievements, but not with the disorder of ADHD itself – i.e. it has not been found to be increased in people diagnosed with the disorder, only in people with subclinical symptoms or those that possess traits ...
This meant up to 10% of children in the U.S. were described as having ADHD. Current estimates suggest that ADHD is present internationally in about 7.2% of children. [33] ADHD is diagnosed around 5 times more often in boys than girls. Reasons for this disparity are debated, but likely involve both biological and social/diagnostic factors.
Female children were more sensitive to pathological familial environments, thus showing that in a high- stress environment with both maternal depression and older- male sibling depression and anti social behavior, there is a higher risk of female children developing psychopathological disorders. [9]