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Unconsciousness may occur as the result of traumatic brain injury, brain hypoxia (inadequate oxygen, possibly due to a brain infarction or cardiac arrest), severe intoxication with drugs that depress the activity of the central nervous system (e.g., alcohol and other hypnotic or sedative drugs), severe fatigue, pain, anaesthesia, and other causes.
The hours that children spend asleep influence their ability to perform on cognitive tasks. [87] [88] Children who sleep through the night and have few night waking episodes have higher cognitive attainments and easier temperaments than other children. [88] [89] [90] Sleep also influences language development.
Secondary effects of drugs, which include abnormal heart rate and blood pressure, as well as abnormal breathing and sweating, may also indirectly harm the functioning of the ARAS and lead to a coma. Given that drug poisoning is the cause for a large portion of patients in a coma, hospitals first test all comatose patients by observing pupil ...
"For instance, you might have trouble falling asleep the night before a big presentation or an exam. Fortunately, this type of insomnia typically fades away on its own once the stressful event ...
Here’s what you need to know. Meet the experts : W. Christopher Winter , MD, a neurologist and sleep medicine physician with Charlottesville Neurology and Sleep Medicine and host of the Sleep ...
Microsleep is extremely dangerous when it occurs in situations that demand constant alertness, such as driving a motor vehicle or working with heavy machinery. People who experience microsleeps often remain unaware of them, instead believing themselves to have been awake the whole time, or to have temporarily lost focus.
Apart from the specific condition of obstructive sleep apnea, other causes of snoring include alcohol intake prior to sleeping, stuffy nose, sinusitis, obesity, long tongue or uvula, large tonsil or adenoid, smaller lower jaw, deviated nasal septum, asthma, smoking and sleeping on one's back. Primary snoring is also known as "simple" or "benign ...
Whether it's the nightly news or an old Friends episode they've seen 40 times, many people say they are lulled to sleep by the television. In fact, some can’t imagine falling asleep without it ...