Most of us know that the nights without sleep can unmount your emotions. Scientists now have a better idea of why this occurs. They have shown that lack of sleep heavily active emotional centers of the brain and weakens the brain circuits that keep your emotions under control.
Scientists know that lack of sleep can interfere with your health in many ways. It can disrupt your learning and memory and your ability to fight disease. But they understood much less on how sleep, and emotions are connected in the brain.
National funded by the Institute of health researchers scanned the brains of healthy 26 adults while they watched 100 images. First, the images are neutral - such as a Chair or a bowl of fruit. Later, they became more unpleasant and disturbing - as a dirty toilet, a burn victim or mutilated bodies.
Some participants had a good night sleep for prior analysis of the brain. Others had been kept up for about 35 hours straight - on how long you would have if you remain awake throughout the night and the next afternoon without NAPs.
For everyone, the disturbing images has led to greater activation of a region of the primitive brain which triggers strong emotions. But the activation was more intense in the people who were sleep deprived and spread over a greater surface area of 60%.
Lack of sleep had another effect on the brain. In the group, deprived of sleep, Centre of emotion in the brain seems to be more strongly linked to a region of the brain primitive, impulsive and less connected to an area that normally keeps emotions and behaviour in the failure.
Researchers say that their study illustrates the dangers of not enough sleep. Their findings suggest that restorations of sleep control of our emotional brain circuits and we help to face the next challenges and social interactions. Source: National Institute of health
Sponsored links: 03-05-2011 by Drali @ mesrahealth category: Fitnees emotional, General