- Resources
Environmental Factors Affect Asthma Prevalence
- Attention-Deficit Hyperactivity Disorder - Risk Factors
- Highlights
- Introduction
- Risk Factors
- Diagnosis
- Complications
- Other Disorders Associated with ADHD
Causes
Brain Structure
Research using advanced imaging techniques shows there is a difference in the size of certain parts of the brain in children with ADHD compared to children who do not have ADHD. The areas showing change include the prefrontal cortex, the caudate nucleus and globus pallidus, and the cerebellum.
Brain Chemicals
Abnormal activity of certain brain chemicals in the prefrontal cortex may contribute to ADHD. The chemicals dopamine and norepinephrine are of special interest. Dopamine...
Read moreMore information on "Environmental Factors Affect Asthma Prevalence"
From Our Experts
Food Factors In Asthma
Think what you eat has nothing to do with your battle with Asthma? Think Again. Nutrition Expert Heather Reese explains. Most experts agree... Read more »
Prevalence of Gulf War Illness Varies by Deployment Area
The journal Environmental Health Perspectives has published the results of a study which investigated the links between Gulf War Illness... Read more »
How Recent and Future Climate Changes Affect Asthma
I'm sure you've heard of global warming, not to mention many of the crazy environmental happenings that people all over the world have been... Read more »
Environmental and Geographic Influences on RA
Last week at the American College of Rheumatology annual meeting, researchers from the Mayo Clinic presented new data finding that from... Read more »
How Are the Lungs Affected by Stress?
"You're just like everybody else... Pressure!" So sang Billy Joel in his 1982 hit. Joel also has asthma. Perhaps he didn't know... Read more »
From Our Sources
Inner-City Children and Asthma: Asthma Triggers to Avoid
Asthma Fast Facts: Over 9 million U.S. children under 18 years of age (13%) have ever been diagnosed with asthma, and 6.5 million children... Read more »
Bipolar Depression: What are the risk factors and causes of bi...
Genetic or hereditary factors contribute to the risk of bipolar disorder. Studies have demonstrated that the prevalence of bipolar disorder is higher... Read more »
Restless Legs Syndrome and Related Disorders: Risk Factors
Source: ADAM Encyclopedia
RLS may affect 3 - 15% of the general population. It is more common in women than in men, and its frequency increases with age. The disorder affects... Read more »
Asthma
Source: HealthCentral Encyclopedia
Asthma is a chronic inflammatory disorder of the airways within the lungs that affects over 17 million people in the United States.The lung is the... Read more »
Causes of ADHD
Source: ADAM Encyclopedia
Gender and ADHDADHD is diagnosed more often in boys than in girls. Boys are more likely to have the combined type of ADHD. Girls are more likely to... Read more »
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