Each person has a sleep pattern . What for some is simple, like getting up at eight in the morning after a night dozing peacefully, for others represents a nightmare.
The reasons are varied, but there is a genetic component, a circadian rhythm that determines at what times our body is activated or deactivated. If you tend to lie down early in the morning and wake up late, you are a late sleeper. And we have bad news: it is killing you little by little.
A huge study
This disturbing revelation comes from a gigantic work done by researchers from the University of Surrey and Northwestern University published in Chronobiology International.
The work analyzes sleep patterns of more than 433,000 people over six and a half years. A fertile and extensive field of study that has allowed scientists to determine what effects our sleep has on what hours.
And the results are relatively predictable. Late sleepers have a higher risk of death than skylarks, those people capable of going to bed early, getting up early and adjusting their sleep routine to the usual day-to-day schedules.
After crossing various data, the researchers calculated that a late chronotype increases the risk of death by 10%, controlling for age and sex (around 10,000 people died during its realization).
The social norm stipulates that the activity takes place in the mornings: schools, universities and most of the works require early rises. For a late sleeper the circumstance is complicated: your body demands a certain sleep schedule (from 02:00 to 11:00, for example) and your other obligations.
As a result, people with a late circadian rhythm sleep less, generate more stress and have other problems derived in their daily health.
The study does not say that nocturnal owls must die before, but that their sleeping patterns entail risk to their health.
The researchers also point out that late sleep is associated with a higher prevalence of cardiovascular diseases, diabetes or respiratory diseases. If we know that sleeping badly has negative repercussions on your health and that late sleepers have greater problems to reconcile sleep and social rhythm, the result is logical.
Am I a late sleeper? In case the answer is affirmative, there are societies that seek to make the world aware of the different sleep patterns (very genetically marked) in a society.
The risks are also academic or work-related: other studies have identified a lower school performance at a late circadian rhythm. The ideal would be a greater reconciliation between sleep patterns and work or academic life. A flexibility still far away.
Source: Engadget / World Economic Forum