Obstructive sleep apnea  Obstructive sleep apnea (OSA) is a common sleep apnea caused by obstruction of the airway.  It is characterized by pauses in breathing during sleep.  These episodes, called apneas (literally, "without breath"), each last long enough that one or more breaths are missed, and occur repeatedly throughout sleep. Rubin Pajoohan Fartak International Engineering co.

 In obstructive sleep apnea, breathing is interrupted by a physical block to airflow, despite the effort to breathe.  The individual with sleep apnea is rarely aware of having difficulty breathing, even upon awakening.  Sleep apnea is recognized as a problem by others witnessing the individual during episodes or is suspected because of its effects on the body. Rubin Pajoohan Fartak International Engineering co.

 Symptoms may be present for years, even decades without identification, during which time the sufferer may become conditioned to the daytime sleepiness and fatigue associated with significant levels of sleep disturbance.  Since the muscle tone of the body ordinarily relaxes during sleep, and since, at the level of the throat, the human airway is composed of walls of soft tissue, which can collapse, it is easy to understand how breathing can be obstructed during sleep. Rubin Pajoohan Fartak International Engineering co.

 Although many individuals experience episodes of obstructive sleep apnea at some point in life, a much smaller percentage of people are afflicted with chronic, severe obstructive sleep apnea.  Many people experience elements of obstructive sleep apnea for only a short period of time.  This can be the result of an upper respiratory infection that causes nasal congestion, along with swelling of the throat, or tonsillitis that temporarily produces very enlarged tonsils. Rubin Pajoohan Fartak International Engineering co.

 The Epstein-Barr virus, for example, is known to be able to dramatically increase the size of lymphoid tissue during acute infection, and obstructive sleep apnea is fairly common in acute cases of severe infectious mononucleosis.  Temporary spells of obstructive sleep apnea syndrome may also occur in individuals who are under the influence of a drug (such as alcohol) that may relax their body tone excessively and interfere with normal arousal from sleep mechanisms. Rubin Pajoohan Fartak International Engineering co.

People with obstructive sleep apnea have a markedly increased risk of severe motor vehicle crashes involving personal injury, according to a new study. The study of 800 people with sleep apnea and 800 without the nighttime breathing disorder found that patients with sleep apnea were twice as likely as people without sleep apnea to have a car crash, and three to five times as likely to have a serious crash involving personal injury. Sleep apnea has been linked with elevated blood sugar levels, suggesting people with the condition could be at an increased risk of cardiovascular illness and mortality. The results of the study found that levels of glucose concentration were significantly linked with the severity of sleep apnea Rubin Pajoohan Fartak International Engineering co.

Researchers evaluated the potentially deadly effects of sleep apnea in patients with heart failure. Sleep apnea is a disorder in which the brain fails to send messages to the respiratory muscles, causing breathing to stop for short periods throughout the night. People with sleep apnea appear to be at higher risk of pneumonia than people without, according to a study. Sleep apnea is characterized by disrupted sleep, caused when the upper airway becomes obstructed by soft tissue, cutting off oxygen. It has been linked to several types of heart disease and cognitive impairment. People with obstructive sleep apnea are at higher risk of aspiration while sleeping. Rubin Pajoohan Fartak International Engineering co.

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