In a definition essay, you explain the meaning of a certain term by giving a detailed description of it, and support your definition with clear examples or facts. Such explanations are needed if a term is special, abstract, disputed or does not have a common meaning.
Dysphagia has many possible causes and happens most frequently in older adults. Any condition that weakens or damages the muscles and nerves used for swallowing may cause dysphagia. For example, people with diseases of the nervous system, such as cerebral palsy or Parkinsonâs disease, often have problems swallowing.
Dysphagia: The Basics. ïµ A large proportion of these cases are due to dysphagia arising from. a variety of causes, primarily stroke, degenerative neurological. diseases, and head and neck cancer. ïµ One in 17 people will develop some form of dysphagia in their. lifetime, including 50 to 75 percent of stroke patients and 60 to 70. percent of patients who undergo radiation therapy for head and. neck cancer. Estimates of dysphagiaâs prevalence in such. neurological diseases as Parkinsonâs Disease and ALS run as high as.