The exact cause of Parkinson's disease is unknown. Scientists think that Parkinson's is probably due to a combination of genetic and environmental factors.
Genetic Factors
Specific genetic factors appear to play a strong role in early-onset Parkinson's disease, an uncommon form of the disease. Recent research suggests that multiple genetic factors may also be involved in some cases of late-onset Parkinson's disease.
Environmental Factors
Environmental factors alone are probably not a cause of...
Read moreWhen doctors encounter a chronic disease, that tends to be where they put their focus - for example, to help an organ work more effectively... Read more »
The National Digestive Diseases Information Clearinghouse offers this list of symptoms that may be warning signs of celiac disease in adults. Read more »
Source: ADAM Encyclopedia
About 90% of gallstones cause no symptoms. There is a very small (2%) chance of developing pain during the first 10 years after gallstones form.... Read more »
Source: ADAM Encyclopedia
Symptoms of Hodgkins disease may include:Swollen (but painless) lymph nodes in the neck, armpits, or groinPain in lymph nodes after drinking... Read more »
Source: ADAM Encyclopedia
More than 75% of American adults have some form of gum disease but most are unaware of it. Risk factors for periodontal disease include:Oral... Read more »
Source: ADAM Encyclopedia
The sickle cell gene for hemoglobin S (HbS) is the most common inherited blood condition in the United States. About 70,000 - 100,000 Americans --... Read more »