Washington – Researchers at the University of California, Berkeley, in a study published in the current issue of the Journal of Neurology, suggest a link between increased chronic pain and increased insomnia in modern society.
Initially, researchers under Adam Cross studied the relationship between sleep and pain through experiments on 25 healthy young men in a research sleep laboratory. They sent volunteers to a sleep research laboratory and then tested how much they felt after going to bed at night in the lab.
To test the feeling of pain, the researchers raised volunteers with a gradual increase in heat while the participants felt no pain. At the same time, they tried to evaluate the activity of the brain in different regions.
During the experiment, the volunteers were reminded of their pain level through the starting point of 1 and ending with 10. The participants felt heat and felt it was unpleasant an average of 44 degrees. The researchers then repeated the same experiment after the participants passed the night of insomnia.
Here, most volunteers began to experience heat at a lower temperature, on average 42 degrees.
All volunteers were generally unpleasant at a low temperature, which shows that their sensitivity to pain increases after they spend one night without proper sleep.
Scientists confirm that the injury is the same, and the reference difference is how to estimate brain pain after sleeping much less than man's need. This was also noted in the assessment of the observed brain activity, which increased the activity in the center of the brain responsible for pain.
At the same time, brain activity has decreased in what is known as a region of recombinant nucleus and jaundice, areas that play a role in overcoming the pain. "The lack of sleep not only strengthens the activity of areas that experience pain in the brain, but also blocks the natural centers that relieve pain," says Matthew Walker, senior researcher.
A lack of sleep reduces brain activity in what is known as a region of recombinant nucleus and jaundice, areas that counteract pain
"If the lack of sleep increases our sensitivity to pain, a good sleep is a natural home that can help alleviate pain." During the second part of the study, the researchers surveyed 230 men and women over the Internet about how good their sleep was and how sick they felt the next day.
Evaluation of the research results confirmed the experiments conducted by the researchers in the laboratory, as it was found that the fall in sleep quality – even if the fall is low – negatively affects the volunteer individually the next day, where he feels voluntary pain.
Researchers say the study brings positive news that improving sleep quality – albeit minimal – can contribute to reducing the human feeling of pain.
The researchers found that their findings are particularly important for hospitals that gather many people who suffer from pain, while at the same time suffering from lack of sleep. They predict that patient suffering will be reduced when hospitals focus better on improving the quality of their sleep, which can help reduce the amount of pain medication used.
A recent study by neuroscientists at the Polytechnic University in Italy has warned that the human brain is eroded when people do not have enough sleep at night, but this does not cause worrying health damage.
The researchers followed the brain of a group of mice to detect the effect of sleep disorders in the brain. The research team observed an unusual activity in brain astrocytes in mice deprived of sleep, unlike mice who slept normally for 7 to 8 hours at night. Stellar cells, which usually regulate sleep, eat synapses when sleep deprivation occurs, according to the study.
Dr Michelle Pilzie, co-author of the study, said star-studded eating cells must not be harmful because they could be brain cleansers.
A lack of sleep stimulates glial cells, he said. The study showed that the persistence of cells in their activity, at a low rate, leads to brain disorders.
Doctors usually follow a permanent activity in the brain's glia in patients with Alzheimer's disease. Early research has shown that getting enough sleep at night – seven to eight hours a day – improves the overall health of the body and protects against diseases, especially diabetes and obesity.
Studies have also linked sleep disorders with the risk of stroke, heart attacks, and weak immune systems.
A team of researchers at the University of California has previously shown that deprivation of the dream disrupts the ability of brain cells to communicate with each other, leading to temporary mental deficits that affect memory and visual perception.