There are countless stories of sleepwalkers suddenly waking up and finding themselves naked in their backyards. Between 1 and 15% of the population are prone to sleepwalking, which involves people getting up and walking around while asleep and often doing bizarre things. Frequent sleepwalking can lead to health problems since it interrupts normal patterns of sleep. But what causes sleepwalking and are there ways to control it?
Possible causes
Sleepwalking occurs in the deep stage of sleep when slow brain waves begin to appear. It is one of a group of disorders known as parasomnias: unusual behaviours or activities that occur during sleep. These range from teeth grinding and restless leg syndrome to having sex or eating while asleep.
But when you get down to what drives these bizarre behaviours, the science gets slightly hazy. Sleepwalking has long been considered a disorder linked to parts of the brain that control arousal, however, the specific pathways and processes involved are still unknown.
Our bodies function according to a 24 hour cycle called a circadian rhythm, where brain wave activity and hormones fluctuate partly under the influence of external factors such as light, but also due to internal regulation. Some researchers believe that slight differences in this cycle could be linked to sleepwalking.
Sue Wilson, a Research Fellow in Psychopharmacology at the University of Bristol in the UK, runs a sleep clinic and is investigating the causes of sleepwalking. Her research has focused on the link between stress hormones and parasomnias. "We think that perhaps sleepwalkers have different circadian rhythms of stress - they're more stressed after a night's sleep than normal sleepers," she says. A sleepwalker's stress levels can get even higher when they become concerned about their sleepwalking. "It's a vicious circle," says Wilson, "they worry about sleepwalking so they have insomnia. And of course, if you sleep deprive yourself you go into a deeper sleep and so you're more likely to sleepwalk."
Source:
firstscience
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Showing posts with label Sleeping Style. Show all posts
Showing posts with label Sleeping Style. Show all posts
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Sleeping Style
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According to the report from psychologists, the sleeping posture of human being is closely related to their psychological state and personality.
Below are 6 different styles of sleeping posture, see which one is your sleep style....
Analysis:
A. Foetus Style
Self-defence, a style of protecting oneself. Have extraordinary analytical power, not easily to expose oneself. Actually he or she may have strong feel of dependence.
B. Semi-Foetus Style
Balanced and stable personality. People sleeping towards the right side will do things very seriously, but his/her action may be quite slow. People sleeping towards the left may have a and will do things bravely.
C. Prostrate and Worship Style
This type of person have the mind to occupy the whole bed, hope to grasp all the things he/she wanted into one's hand. This type of person is conservative, not easily to handle things that are happened accidentally.
D. King Style
This type of person has stable psychological conditions. Have self confidence, open-minded and creative mind. This type ofperson always feel happy, easy to control one's manner.
E. Criminal Style
The major key point for this style is the ankle, because he/she looks like being locked by his/her ankle, so that the person is given a name of "Criminal". This posture shows that the person is being hindered by something in his/her mind. His/her worry is being reflected by one of his/her ankle is being put on another ankle.
F. Sleeping Lion Style
Posture showing that the person is refusing to sleep. This kind of person won't sleep long and difficult to fall into sleep, his/her conscious mind hope that he/she can be woken up as soon as possible
Source : ThinkQuest Org
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