In the result of lack of sleep increases the risk of development of hypertension, obesity, diabetes, cancer, and traffic accidents. In addition, observed a negative impact of sleep deprivation on cognitive function. However, some people are much less vulnerable to the consequences of sleep deprivation, and this is due to genetic peculiarities.
A new study experts from the University of Washington published a Medical News Today. Under the leadership of scientists of the 49 healthy voluntary subjects under the age of 30 years were divided into 2 groups. The first group of 34 people remained awake 38 hours, the other participants slept in their usual mode. At the same time twice subjects were tested with the use of computer programs for the ability to selectively focus on particular stimuli. Between tests, participants had to switch.
Separately, researchers have studied the genes of all the volunteers. Participants who are forced to stay awake, were divided into 3 groups on the basis of belonging to a variant of the gene DRD2. Functional feature is the gene encoding dopamine receptor D2, responsible for processing information in the brain governing cognitive abilities.
In the experiment, it was found that during the switch some volunteers got lost from the group, showing worst case test results. Meanwhile, participants in the gene DRD2 which was discovered some changes, coped with the test along with the subjects from the control group. Therefore, the established genetic feature preventing the effects of lack of sleep.