A sleep disorder (somnipathy) is any disruption in the sleep patterns of an individual. While some sleep disorders may leave you feeling unrefreshed, a number of symptoms are more severe including excessive sleepiness, snor¬ing, difficulty falling asleep during normal sleeping hours and abnormal be¬haviors such as restless leg syndrome. There are even disorders that cause you to get too much sleep.
Problems with sleep can be caused by another disorder, by changes in the sleep environment, by the timing of sleep, or by stress. Researchers do not know exactly why people need sleep, but we do know that lack of sleep can kill. Humans deprived of sleep for long periods begin hallucinating and develop other mental problems.
Sleep medicine is a recognized medical subspecialty. Doctors who specialize in sleep medicine help people who are unable to sleep well. Sleep doctors are able to detect and treat both common and rare sleep disorders. Some common sleep disorders are insomnia, jet lag, sleepwalking, snoring and obstructive sleep apnea.
Researchers do not know exactly why people need sleep, but we do know that lack of sleep can kill. Humans deprived of sleep for long periods begin hallucinating and develop other mental problems, such as concentration and formations of memories.
Sleep deprivation can adversely affect brain function. Non REM sleep may allow enzymes to repair brain cell damage caused by free radicals.
A 1999 study found that sleep deprivation resulted in reduced cortisol secretion the next day, driven by increased subsequent slow-wave sleep. A new study has shown that while total sleep deprivation for one night caused many errors, the errors were not significant until after the second night of total sleep deprivation.
Chronic insomnia can itself be a symptom of another condition, such as depression, heart disease, sleep apnea, lung disease, hot flashes, or diabetes, so it's important to see a doctor if you are having trouble sleeping.
Each type of sleep disorder has its own particular symptoms, but each result in some of the above signs of sleep deprivation.
If you suspect that you are not getting enough sleep or that you might have a sleep disorder, speak to your physician or a sleep specialist. If your health care professional feels that you may have a sleep disorder they may ask that you keep a sleep diary, or they may even have you stay overnight at a sleep center for observation.
Insomnia effects your senses in the following ways: irritable or sleepy during the day, have difficulty staying awake when sitting still, such as when watching television or reading, occasionally fall asleep while driving, have difficulty paying attention or concen¬trating at work, school, or home, and poor performance at work and school.
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