Sleep is a repair process of the human body that restores the mind and relieves fatigue. About one-third of a person's life is spent sleeping, and good sleep is one of the three health standards recognized by the international community, and too little sleep or poor sleep can affect health.
In today's society, staying up late has become the new normal for many young people. Staying up late often can be very harmful to the body, and sleep deprivation is known to be associated with an increased risk of cardiovascular disease, depression, diabetes, high blood pressure, and overall mortality.
According to the data released by the "China Sleep Research Report 2023", in 2022, the sleep time of Chinese is concentrated from 23 o'clock to 1 am. In addition, more than 50% of young professionals do not go to bed until after 12 a.m. every day, and even 13% stay up until after 2 a.m.
近日，中南大学湘雅三医院吴金泽、张如旭等研究人员在" Sleep Medicine "期刊上发表了一篇题为" Association between weekend catch-up sleep and depression of the United States population from 2017 to 2018：A cross-sectional study "的研究论文。
Studies have shown that people who don't get enough sleep on weekdays have a significantly lower risk of depression by catching up on weekends, suggesting that sleeping on weekends may be an active strategy to regulate their mental state.
In this study, researchers analyzed 5,510 participants in the National Health and Nutrition Examination Examination (NHANES) cohort, including 5,051 non-depressed and 459 depressed patients, assessed participants' depressive symptoms using the Clinical Depression Screening Scale PHQ-9, and analyzed the relationship between weekend catch-up sleep (CUS) and depression.
The definition of sleeping lazily on weekends is that the average sleep time on weekends - average sleep time on weekdays = catch-up sleep on weekends, measured in hours, excluding sleep time during non-major sleep periods such as naps, and more than 0 is defined as having the habit of catching up sleep on weekends. Sleeping less than 7 hours on a weekday is defined as not getting enough sleep on a weekday.
It was found that catching up on sleep on weekends reduced the risk of depression, with people who did not catch up on weekends having a 19% lower risk of depression.
When analyzed by weekday sleep duration, participants who slept less than seven hours on weekdays had a 34% lower risk of depression on weekends than those who did not catch up on weekends.
Further analysis found that this association was more pronounced in men, middle-aged people (40-60), and those with shorter weekday sleep hours (<7 hours).
When only men were analysed, weekend catch-up sleep was negatively associated with depression in people under the age of 60 at all life stages.
Researchers say that if they usually sleep less, they can improve their depressive symptoms by catching up on weekends, and adult men under the age of 60 can reduce the severity of depression by sleeping on weekends.
无独有偶，2021年9月，韩国延世大学医学院的研究人员在" Sleep Medicine "期刊上发表了一篇题为" Weekend catch-up sleep and depression：results from a nationally representative sample in Korea "的研究论文。
The study showed that one hour of sleep on the weekend was associated with a 27% lower risk of depression and a 48% lower risk of depression for those who did not catch up on the weekend for 8 hours of sleep. However, more than 2 hours of catch-up sleep on weekends is associated with an increased risk of depression, not necessarily more sleep is better.
It is worth mentioning that catching up on sleep on weekends can also greatly reduce the risk of heart disease.
2023年11月，南京医科大学的研究人员在" Sleep Health "期刊上发表了一篇题为" Association between weekend catch-up sleep and cardiovascular disease：Evidence from the National Health and Nutrition Examination Surveys 2017-2018 "的研究论文。
Studies have shown that for people who don't get enough sleep on weekdays (< 6 hours), more than 2 hours of catch-up sleep on weekends is associated with a 70% lower risk of cardiovascular disease. However, for people who sleep more than 8 hours on weekdays, catching up on weekends for more than 2 hours increases the risk of cardiovascular disease.
The researchers analyzed 3,400 adult participants in the National Health and Nutrition Examination Survey (NHANES) cohort, 333 of whom had cardiovascular disease (CVD), and analyzed the relationship between weekend catch-up sleep and cardiovascular disease.
The study found that people who slept more than 2 hours on weekends had a 63% lower risk of cardiovascular disease compared to those who didn't catch up on weekends.
When researchers divided weekend catch-up sleep into 1-2 hours and more than 2 hours, they found that people who slept more than 2 hours on weekends and less than 6 hours on weekdays had a 70% lower risk of cardiovascular disease.
Association between weekend catch-up sleep time and CVD
Analysis of different types of cardiovascular disease found that weekend catch-up sleep was associated with lower angina, stroke, and coronary heart disease.
In addition, for people who sleep more than 8 hours on weekdays, more than 2 hours of catch-up sleep on weekends increases the risk of cardiovascular disease.
In summary, the best sleep time is 7-8 hours, try to ensure 7-8 hours of sleep every day, and if you don't get enough sleep on weekdays, you can sleep for 2 hours more on weekends to reduce the risk of heart disease and depression.
The article comes from Yinuovi, the author is Yinuovi