Why is it so needs 8 hours of sleep?
• Why is it so needs 8 hours of sleep?
Do you know that over the past 50 years, humans have reduced their sleep for half an hour? In the end, well, who wants to sleep 1/3 of your life? Therefore, we have learned to work sleepy, and drink enough cup or two of coffee, and you will feel refreshed. Of course, one sleepless night did not bring us much harm, but a chronic lack of sleep can ruin our health. Chronic lack of sleep has serious consequences for our health: it can lead to diseases such as depression, bipolar disorder, Alzheimer's disease, schizophrenia, diabetes, etc. And ten or more days without sleep can and does kill us...
Let's find out why we are so required 8 hours of sleep?
Professor Russell Foster, a neuroscientist at the University of Oxford, conducted a study that showed that sleep without rapid phase REM weakens our ability to develop new tasks and work of 3 times. As without it we lose the ability to regenerate. At the beginning of deep sleep in the blood released a significant amount of growth hormones, which are responsible for tissue regeneration.
Lack of sleep impairs our cognitive abilities such as attention, concentration, thinking and ability to solve problems, which significantly reduces the performance at work.
Researchers from the TIMSS and PIRLS International Study Center at Boston compared the sleep duration of children around the world. It turned out that where the children slept longer, they have a school performance was better. During sleep, the body secretes growth hormone, necessary for proper development of children
During sleep, our brain organizes memories and acquired knowledge. If you have enough sleep, then it is likely that new knowledge or information obtained in the course of the day, you learn bad.
Recently, scientists from the University of Rochester in New York to determine the main function of sleep, which for a long time remained a mystery to us. It turns out that sleep helps the brain to get rid of toxins produced during metabolism. This happens by means of cerebrospinal fluid. Based on the results of research mice, scientists found that the cerebrospinal fluid flows through the brain and collect "waste" left in it in the process of life. The whole process of "cleansing" occurs during sleep. When the brain goes to sleep, the cells shrink, leaving voids that allow the flow of cerebrospinal fluid and remove waste.
A chronic lack of sleep or insomnia increases the risk of heart attack, arrhythmia, hypertension, stroke, diabetes, cancer. According to recent studies, the lack of sleep contributes to the development of Alzheimer's disease, a weakening of the immune system and can lead to mental disorders. Therefore, if you or your loved ones are suffering from insomnia, then be sure to make electroencephalography EEG - a graphical test of brain activity. This completely harmless and painless test that can quickly identify and diagnose disorders and diseases in the brain.
A person who does not get enough sleep, the reaction rate of the wheel is reduced as well as under the influence of alcohol.
According to a study conducted in 2007, people who sleep less than five hours a day, twice as often at risk of premature death, especially as a result of cardiovascular disease.
The women who slept only six hours a day, 12 percent more likely to be overweight. If the duration of sleep only 5 hours, the risk increases to 32 percent.
A study in Sweden found that people who sleep little, often choose more high-calorie, unhealthy foods that promote excess weight.
A study conducted in 2007, with the participation of 10 thousand people showed that the risk of depression five times increased in people enough sleep.
Sleep deprivation leads to the fact that the body produces a large amount of stress hormone - cortisol, which promotes the formation of wrinkles. During sleep, the body secretes growth hormone needed adults to increase muscle mass, maintaining a healthy skin and strong bones. If you sleep too little, in your skin there is no chance of recovery.
Sleepless Night causes havoc in the human body at its deepest, molecular level and has an impact on its functioning, ranging from hormone levels and mood, and ending with the operability of the brain.
Many scientific studies have shown the existence of a causal link between lack of sleep and infertility.
And still a lack of sleep leads to a decrease in potency.