Sleep is an important factor in maintaining physical health. Insufficient sleep will lead to an increase in the risk of various mental related diseases and other diseases.
what is the relationship between sleep and waist circumference , body weight, blood fat, blood sugar , insulin , impulsivity and risk-taking
how long is the perfect sleep time
The answer is in the text. Seeing your waist grow? You should sleep more
You can put the increase in waist circumference on the list of “health problems related to insufficient sleep”. This list already includes faster cell aging, nerve damage and memory loss.
This is the conclusion of the new study. Adults who sleep six hours a day have an average waist circumference of 3cm larger than those who sleep nine hours.
The team from the University of Leeds in the UK believes that lack of sleep disrupts the mixing of metabolic chemicals and the body’s ability to maintain a healthy weight.
“Our findings support the evidence accumulated over time that lack of sleep leads to metabolic diseases.” The researchers reported.
The data were collected from 1615 Britons aged between 19 and 65 as part of the national diet and nutrition survey. Participants were asked to record sleep and food intake, weight, blood pressure, waist circumference and other information for four consecutive days.
Like the difference in waist circumference, the survey also found that people who lack sleep will also weigh more: among those who sleep for 6-9 hours, every additional hour will bring a decrease in BMI of 0.46kg/m2.
These data also show that shorter sleep time is associated with lower HDL cholesterol levels. High density lipoprotein cholesterol is “good cholesterol”, which can help us eliminate “bad cholesterol” in the blood and reduce the risk of heart disease.
However, this study did not explore the relationship between unhealthy diet and less sleep, which has been proposed in the past.
Overall, there is evidence that sleeping 7, 8 or 9 hours a day has more positive benefits. Researchers suggest that the most perfect length of sleep should be between 7-9 hours, depending on the individual.
The researchers also said that their findings could provide new insights into the relationship between sleep and metabolic diseases, such as diabetes, which currently affects 400 million people worldwide.
However, the team said that this is not a long-term investigation of chronic sleep problems and whether it causes diseases, but a snapshot showing sleep time and metabolic health.
The hope is that if we understand more about the causes of obesity, such as reduced sleep, we can better solve it and related health problems.
And even if this study is examining different metabolic measures, it is still far from the first study that can conclude that “sleep is a factor in obesity”.
“The number of obese people in the world has doubled since 1980.” Greg Potter, a member of the team, said, “obesity has led to many diseases, the most famous of which is diabetes.”
“Understanding why people gain weight has an important impact on public health.”
does the child sleep less for 1 hour increase the risk of diabetes
Recently, in a research report published in the international journal Pediatrics, researchers from the University of London found through research that children who sleep less than one hour a night on average tend to have a higher risk of type 2 diabetes. Factors related to the risk of type 2 diabetes include higher blood glucose level and insulin tolerance.
The National Health Service (NHS) of the United kingdom recommends that children under 10 years old should sleep for 10 hours, while children who sleep less than one hour a day often have a higher risk of illness; Professor Christopher g Owen, the researcher, said that the results of this study showed that increasing the sleep years might provide a simple way to reduce the body fat level and the risk of type 2 diabetes in early years. The potential health benefits brought by increasing the sleep time of an individual in childhood may have far-reaching significance for the health of an individual in adulthood.
This study entitled “sleep duration and the risk of type 2 diabetes” confirms the previous research conclusions of researchers, who have previously clarified the association between shorter sleep time and higher body fat level through research. In this study, the researchers studied 4525 children aged 9-10 from multiple races, analyzed the body index and blood samples of the participants, and collated and analyzed the data of the questionnaire. The results showed that children with longer sleep time had lower body weight and body fat, and there was a negative correlation between sleep time and insulin level, insulin tolerance and blood glucose level.
In this study, the researchers did not find an association between sleep time and individual cardiovascular disease risk factors, such as blood lipids and blood pressure; The researchers concluded that the average increase of half an hour’s sleep time (i.e. 10.5 hours) in the working day is directly related to the decrease of 0.1kg/m2 in body mass index and 0.5% in insulin tolerance. Reducing the level of corresponding risk factors may effectively reduce the risk of individuals suffering from type 2 diabetes in later life.
I can’t sleep enough? Beware of taking risks
Young and middle-aged people need an average of 9 hours of sleep every day, while middle-aged and old people need 7.5 hours. However, many Westerners sleep less. According to a study, about one-third of people in several industrial countries surveyed sleep too little. If young and middle-aged people sleep less than 8 hours a night, their inattention will increase, which will cause considerable negative effects. In sleep clinics, more and more healthy people are suffering from sleep deprivation.
Lack of sleep leads to increased risk-taking behavior
Researchers at the University of Zurich and the hospital found that the serious consequence of chronic sleep deprivation – an increase in risk-taking behavior. Sleep and electrical neuroscientists studied 14 healthy male students aged from 18 to 28. They found that students who slept only five hours a night for a continuous week showed a significant increase in risk-taking behavior compared with students who slept eight hours a night. In this experiment, they will be asked to make choices twice a day – there is a certain probability that they will get a large amount of shallow money or a small amount of money safely. The greater the risk, the higher the income, but they may not get anything.
The increase in risk-taking behavior has not been taken seriously
However, not sleeping well one night had no effect on risk-taking behavior, and 11 of the 14 subjects did not show significant increase in risk-taking behavior until they had insufficient sleep for a week. In addition, the study also found a particularly alarming phenomenon: the subjects thought that their risk-taking behavior in the case of insufficient sleep was no different from that in the normal sleep time. “We don’t notice that when we are sleepless, we are doing some risky behavior.” Christian Baumann, a neurologist in charge of CRPP (clinical research priority programs) at the University of Zurich, emphasized that. According to this study, we should strive to ensure our own sleep time, especially for political and economic leaders. “The good news is that in the power hierarchy, sleeping is increasingly seen as desirable.” Baumann said.
Make up for gaps found in important brain regions
This is the first time that researchers have demonstrated that light sleep in the right prefrontal cortex is directly related to increased risk-taking behavior. Early studies have shown that the cerebral cortex is related to risk-taking behavior. “We believe that a long-term lack of sleep will cause the prefrontal lobe of the right brain to not recover well, leading to behavioral changes.” Baumann concludes.
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