What Causes ADHD (Attention Deficit Hyperactivity Disorder)?
Different brain activity, different brain chemistry, and genetic predisposition are some clear findings in the search for the cause of ADHD. Different brain structure may also be an important aspect of ADHD. In fact, recent research into brain anatomy using MRI (magnetic resonance imaging) and PET (positron emission tomography) suggests that children with ADHD showed 3 to 4 percent smaller brain volume in all parts of the brain studied than their control (non-ADHD) counterparts. Even with all that is known, no single cause applies to everyone. Researchers are exploring other possible causes and contributing factors. Over the past several decades, scientists have investigated many theories, which include, but are not limited to, environmental toxins, food additives, nutritional deficiencies, and food allergies.
Environmental Toxins
The rapid development of the brain during pregnancy and the first year of life have necessitated a look at the negative effects of environmental agents such as cigarettes, alcohol, drugs, pesticides, xenoestrogens such as bisphenol (found in many plastics) and lead exposure in pregnancy and early childhood. Such substances can be damaging to the developing brain and nerve cells.
Food Additives
Some food additives are thought to play a contributing role in and/or be associated with ADHD. Most specifically, research has been focused on a link between sodium benzoate found in some carbonated beverages and fruit juices, and food colorings found in processed foods, juices, candy, jams, carbonated drinks, and many other food items.
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Tags: brain, causes, environmental, juices, pregnancy, research, toxins