Sleep Apnea

Sleep apnea linked to poor aerobic fitness

People with moderate to severe obstructive sleep apnea may have an intrinsic inability to burn high amounts of oxygen during strenuous aerobic exercise, according to a new study led by researchers at University of California, ...

Nov 24, 2014
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Synthetic cannabinoid reduces sleep apnea

A synthetic version of a molecule found in the cannabis plant was safe and effective in treating obstructive sleep apnea in the first large, multi-site study of a drug for the sleep disorder funded by the National Institutes ...

Nov 29, 2017
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Race apparently a factor in sleep apnea

A Wayne State University researcher has found that sleep apnea severity is higher among African-American men in certain age ranges, even after controlling for body mass index (BMI).

Jun 26, 2013
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Sleep apnea may make lung cancer more deadly

A team of researchers from the University of Chicago and the University of Barcelona has found that intermittent hypoxia, or an irregular lack of air experienced by people with sleep apnea, can increase tumor growth by promoting ...

Nov 17, 2016
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Sleep apnea (or sleep apnoea in British English; English pronunciation: /æpˈniːə/) is a sleep disorder characterized by abnormal pauses in breathing or instances of abnormally low breathing, during sleep. Each pause in breathing, called an apnea, can last from a few seconds to minutes, and may occur 5 to 30 times or more an hour. Similarly, each abnormally low breathing event is called a hypopnea. Sleep apnea is diagnosed with an overnight sleep test called a polysomnogram, or "sleep study".

There are three forms of sleep apnea: central (CSA), obstructive (OSA), and complex or mixed sleep apnea (i.e., a combination of central and obstructive) constituting 0.4%, 84% and 15% of cases respectively. In CSA, breathing is interrupted by a lack of respiratory effort; in OSA, breathing is interrupted by a physical block to airflow despite respiratory effort, and snoring is common.

Regardless of type, an 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 (sequelae). Symptoms may be present for years (or 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.

This text uses material from Wikipedia licensed under CC BY-SA

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