The popular Feingold Diet identified food additives as a cause of ADHD.  However, a2011 study by the FDA found that behavioral change "is not due to an inherent neurotoxic property of the food or food components."  It did note, though, that there could be intolerance issues for some chemicals by ...

A 2010 study showed a link between second hand smoke and the prevalence of ADHD.  The study found that "there was "significantly higher rates of attention deficit hyperactivity disorder (ADHD), headaches and stuttering among children exposed to secondhand smoke than those who are not exposed."  R ...

During the 2012 study to investigate post-term births, one of the control items was for babies over 4,000 grams.  When studying this theory, no correlation was found between a heavy birth weight and ADHD. ...

According to a 2012 study, children born "post-term" – after 42 weeks as opposed to the standard 40 – are more likely to have behavioral problems, including ADHD.  Though the exact cause was unknown, theories exist that link the ADHD to insufficient oxygen and nutrients from the placenta after ...

In conjunction with the study on genetics and ADHD, it became clear that there is more to the condition than just bad parenting.  With a specific DNA identifier linked to the condition, it is difficult to blame ADHD solely on parenting.  The National Institute of Mental Health has conducted numer ...

A 2010 study out of Cardiff University (UK) discovered thatthere is a genetic element to ADHD.  The study analyzed the DNA of hundreds of children both with and without ADHD.  Researchers found that children with a specific genetic segment either duplicated or missing were twice as likely to have ...

This one is more complicated than what causes ADHD.  A 2012 study found that ADHD is actually over-diagnosed in the youngest children in a given class.  As ADHD is diagnosed largely by behavior, less mature students were often labeled as having ADHD.  The study examined one million children in ...

A 2012 study out of the Mayo Clinic found that children who had been repeatedly exposed to anesthetic at a young age were twice as likely to develop ADHD.  If a child had undergone anesthesia more than two times before the age of three, the risk of ADHD doubled.  The research found that the risk ...

Though a popular idea, sugar is not a cause of ADHD. According to the National Institute of Mental Health, studies have been conducted on this very topic and found no link. Researchers have studied behavior and learning capability with children who have taken varying amounts of sugar, sugar substitu ...