Scientists who discovered that old men really do have big ears, that playing the didgeridoo helps relieve sleep apnea and that handling crocodiles can influence gambling decisions are among this year's recipients of the Ig ...
Other
Sep 14, 2017
2
236
In humans, nodding off for a few seconds is a clear sign of insufficient sleep—and can be dangerous in some situations, such as when driving a car.
Plants & Animals
Nov 30, 2023
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65
When it comes to oxygen, you can have too much of a good thing. Breathing air that contains higher levels of oxygen than the usual 21 percent found in Earth's atmosphere can cause organ damage, seizures, and even death in ...
Cell & Microbiology
Mar 9, 2023
0
139
Sick babies in remote parts of the world could be monitored from afar thanks to new wearable technology designed by physicists at the University of Sussex. And parents at home, concerned about the risk of cot death, could ...
Nanomaterials
Jan 9, 2018
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177
University of Utah engineers who built wireless networks that see through walls now are aiming the technology at a new goal: noninvasively measuring the breathing of surgery patients, adults with sleep apnea and babies at ...
Engineering
Sep 19, 2011
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0
Obstructive sleep apnea, or periodic interruptions in breathing throughout the night, thickens sufferers' blood vessels. Moreover, it increases the risk of several forms of heart and vascular disease.
Cell & Microbiology
May 4, 2009
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0
University of Helsinki researchers tested a new method of diagnosing sleep-disordered breathing in dogs using a neckband developed for human sleep apnea diagnostics. The study revealed that sleep-disordered breathing is more ...
Veterinary medicine
Jun 13, 2023
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12
With the car windows down on the first warm day of spring, the urge is unshakable. You extend your arm into the wind, tracing the city skyline in a natural motion somewhere between swimming and waving. As you move your hand, ...
Engineering
Mar 30, 2018
1
16
It was a sunny and pleasant spring day in Dezful, a small city in the south part of Iran. There were not many people on the street but I remember a young teenager pedalling slowly on his bike. I remember him because a moment ...
Engineering
Oct 6, 2017
0
9
Pillows that track your snoozing patterns? A bed that adjusts based on how much you twist and turn? Companies are adding more technology into their products, hoping to lure customers craving a better night's sleep.
Consumer & Gadgets
Jul 10, 2017
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Sleep apnea (or sleep apnoea in British English) is a sleep disorder characterized by pauses in breathing during sleep. Each episode, called an apnea (Greek: ἄπνοια (ápnoia), from α- (a-), privative, πνέειν (pnéein), to breathe), lasts long enough so that one or more breaths are missed, and such episodes occur repeatedly throughout sleep. The standard definition of any apneic event includes a minimum 10 second interval between breaths, with either a neurological arousal (a 3-second or greater shift in EEG frequency, measured at C3, C4, O1, or O2), a blood oxygen desaturation of 3-4% or greater, or both arousal and desaturation. Sleep apnea is diagnosed with an overnight sleep test called a polysomnogram, or a "Sleep Study".
Clinically significant levels of sleep apnea are defined as five or more episodes per hour of any type of apnea (from the polysomnogram). There are three distinct forms of sleep apnea: central, obstructive, and complex (i.e., a combination of central and obstructive) constituting 0.4%, 84% and 15% of cases respectively. Breathing is interrupted by the lack of respiratory effort in central sleep apnea; in obstructive sleep apnea, breathing is interrupted by a physical block to airflow despite respiratory effort. In complex (or "mixed") sleep apnea, there is a transition from central to obstructive features during the events themselves.
Regardless of type, 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 (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
