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The main problem in achalasia is a failure of the a muscular ring where the esophagus and stomach come together (lower esophageal sphincter) to relax during swallowing.
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Achalasia is caused by degeneration of the nerve cells that normally signal the brain to relax the esophageal sphincter. The ultimate cause of this degeneration is unknown. Autoimmune disease or hidden infection is suspected.
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A pinched nerve is a general term that describes an injury to a nerve or group of nerves. The damage may include compression, constriction or stretching. Nerves that pass near or through bones or other rigid tissues are most susceptible to pinchin...
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Nerve compression is the restriction in the space around a nerve that can occur due to several reasons. Functioning of the nerve is compromised.
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A pinched nerve is caused by some anatomical structure putting pressure on a nerve and impairing its function. This problem may occur in many different areas of the body. The most common places are those in which a nerve must travel through a smal...
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Parasites are organisms that live inside humans or other organisms who act as hosts. They are dependent on their hosts because they are unable to produce food or energy for themselves. Parasites are harmful to humans because they consume needed fo...
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Biological factors that determine health may be classified as either endogenous or exogenous. Endogenous biological determinants include genetic heritage and immunity that is passively acquired from maternal antibodies passed across the placenta o...
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