After a night of inadequate sleep, brain activity increases in areas sensitive to pain and is reduced in the areas responsible for modulating the way in which painful stimuli are perceived, according to a scientific investigation released this Tuesday .
he study -published in JNeurosciThe newspaper of the Society of Neuroscience, headed by Matthew Walker, from the University of California at Berkeley, is the First explanation of the relationship between sleep and pain based on the brain.
These results also help explain the vicious circle that is created with lack of sleep because of pain and the later cycle of chronic pain and, even, the addiction to opioids
In two studies, one to a sound laboratory and the other on the Internet, Walker and his colleagues They demonstrated how the brain processes pain differently when people are deprived of sleep and how the quality of this and the Pain sensitivity can change overnight.
When the researchers kept awake to young and healthy adults during the night in the laboratory, they observed a greater activity in the primary somatosensory cortex and a reduced activity in the regions of the striatum and the cortex of the brain's insulin during pain sensitivity tests.
In addition, in the study conducted online, participants reported one increased pain during the dayAfter having slept poorly the night before.
"If the sleep defect intensifies our sensitivity to pain, as this study shows, sleep should be much closer to the center of patient care, especially in the dwelling rooms, # 39; hospital, "according to Walker.
the Society of Neuroscience, Founded in 1969, it is the largest non-profit organization of scientists and doctors in the world dedicated to understanding the brain and the nervous system, with almost 37,000 members in more than ninety countries.