Sleep 7 hours a night, better than 8 hours, as always believed? .... - Sleep Calculator

Sleep 7 hours a night, better than 8 hours, as always believed? ….

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Every person’s body must sleep on the schedule of the life clock. But how to sleep is good for health Then woke up with a refreshing feeling

Professor Shawn Youngstedt of the College of Nursing and Health Innovation at Arizona State University stated that from data collection Found that people who sleep 7 hours a day have the lowest mortality and illness rates As for people who sleep 8 hours a day, there is a greater chance of various diseases. Which corresponds to some previous reports that Excessive sleep causes more risk of diabetes, heart disease, obesity.


Not enough sleep Risk of diabetes as well. (Especially those with risk, such as having a family member with diabetes Is even more risky) because if we don’t sleep enough Blood glucose and insulin levels will increase rapidly. In addition, there is a risk of insulin resistance. Anyone who is not yet careful Anyone with diabetes already More careful Because it affects the treatment very much

Coronary artery disease

The disease became more dangerous and serious. The lack of sleep May result in increased protein accumulation in the heart Until causing embolism Plus there is a chance that blood pressure will rise. Until risking other diseases Followed by another Either the blood vessels in the brain that are constricted or broken may cause death in a short time

According to Professor Daniel Kripke of the University of California, San Diego, 10 years ago, collecting data for 1 million samples for 6 years, found that people sleeping at 6.5 – 7.4 hours had a lower mortality rate than those who were sleeping or More than that, and in 2011, Professor Daniel Kripke conducted a study of a narrow sample. About 450 elderly women are found that women sleep less than 5 hours per night or more than 6.5 hours per night with a higher death rate.

But some reviewers point out There may be other factors that affect the research results. Such as illness factors Which makes the sample group spend more time sleeping on the bed than the average person Some people sleep short hours. But the quality of sleep Partly due to the internal factors, the body’s genetic involvement and body adaptation As for those who have a lot of sleep hours but waking up and not refreshing Because sleep only shallow sleep Or startled Effecting the work of the respiratory system and blood vessels to work harder Became awake and felt exhausted instead of feeling refreshed

The report published in the Frontiers in Human Neuroscience magazine last year Using the memory test method of the 160,000 sample group found that the performance of our brain in terms of using ideas Will increase according to the number of hours of the mattress and will reach the peak at 7 hours, then will decrease Means that sleeping more than 7 hours a day will not increase the efficiency of the brain in this part

The subject of sleep must take into account 2 things: “hours of sleep – quality of sleep”. If it is perfect, sleep for 7-8 hours and sleep quality is complete, every phase, sleep, sleep, shallow, deep sleep and sleep. dream To complete every stage because there is a relationship There are also medical specialists in neurology. Bangkok Brain and Nervous System Center Bangkok Hospital said that each age needs the same amount of sleep. Child sleep hours 11-13 hours, adults 7-8 hours

Therefore, quality sleep does not depend on time only 7-8 hours. But also depends on the depth of sleep For the body and brain to receive Full relaxation And when going to bed – waking up properly should not sleep late or wake up too late Or some people sleep more than 7-8 hours, but wake up not refreshed It is possible that enough sleep hours But the quality of sleep cannot be Is only shallow sleep, not entering deep sleep Which must find the cause Why can’t I go into deep sleep? Don’t forget to find answers to yourself and improve your sleep to the maximum efficiency.

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