People with osteoarthritis often have joint pain and reduced motion. Unlike some other forms of arthritis, osteoarthritis affects only joints and not internal organs. Rheumatoid arthritis-the second most common form of arthritis-affects other parts of the body besides the joints.eople with osteoarthritis often have joint pain and reduced motion. Unlike some other forms of arthritis, osteoarthritis affects only joints and not internal organs. Rheumatoid arthritis-the second most common form of arthritis-affects other parts of the body besides the joints.
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia. Related to sleep fragmentation: polysomnography, polysomnogram. Arousals and awakenings that disrupt the normal stages and architecture of sleep. These events, which occur commonly in patients who have sleep apnea or chronic pain, contribute to daytime sleepiness and other health problems. Synonym: sleep interruption.
Sleep apnea is a potentially serious sleep disorder that occurs when a person's breathing is interrupted during sleep. People with untreated sleep apnea stop breathing repeatedly during their sleep. There are two types of sleep apnea: obstructive and central. Obstructive sleep apnea (OSA) is the more common of the two.leep disorders are conditions that prevent a person from getting restful sleep and, as a result, can cause daytime sleepiness and dysfunction. There are approximately eighty different types of sleep disorders. About 70 million Americans suffer from them. The most important sleep disorders are: