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06/07/2017
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Do you enjoy the weekend to stay up late? Then know that this practice can have negative effects on your body.
British Broadcasting Corporation © BBC 2016 All rights reserved
By BBC
06/06/2017 16h39 Updated 3 days ago
Jhere is another similar feeling - and without going too far: social jet lag.
This phenomenon occurs when there are great differences between the hours of sleep of the weekend (or of the free days) and the days of work.
Experts believe that interrupting the regularity of sleep patterns can also confuse the biological clock, ie the circadian rhythm, which regulates our metabolism.
Measurement
To understand social jet lag, it is customary to compare the average point of a person's sleep during workdays and on the days off.
Example: If a person sleeps during the week from 11:00 pm to 7:00 am, the average sleep point is 3:00. At the end of the week, if the same person sleeps from 1am to 11am, the midpoint would be at 6am.
With that, the social jet lag in this case would be three hours.
How it affects health
Some studies have already shown that the phenomenon can have an impact on health.
A research published in 2015 in the journal International Journal of Obesity found a correlation between social jet lag and obesity and type 2 diabetes.
The study evaluated the health of about 800 workers who exhibit large differences in sleep patterns between work and free days.
According to the researchers, the result points out that "living against the internal clock can contribute to metabolic dysfunctions."
It is not that social jet lag itself would cause obesity, but a difference of only two hours in sleep patterns was enough to raise those risks, the study said.
Another research published Monday in a supplement to the journal Sleep reveals that every hour of more social jet lag is associated with an 11% increase in the likelihood of suffering from heart disease.
The problem was also associated with poorer health and worsened mood, as well as increased drowsiness and fatigue.
The scientists calculated social jet lag by comparing the midpoints of the week and the weekend of 984 adults between the ages of 22 and 60.
"It was surprising to see that these effects were independent of how much one slept and of insomnia," wrote Sierra B. Forbush, lead author of the study and assistant to the University of Arizona School of Medicine's Sleep and Health Research Program. U.S.
"These results indicate that regular sleep, in addition to the duration of sleep itself, plays an important role in health," he concluded.
Several scientific studies and health institutions recommend that adults sleep at least seven hours a day.
And according to the British Public Health Service, the NHS, experts agree that keeping regular sleep times during the week and on weekends helps prevent sleep problems.
Source: G1
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This article was translated by an automatic translation system, and was therefore not reviewed by people.