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Brain scanning reveals why "Night owls" have a rough population of 9 to 5



T The working day of 9 to 5 came from the American trade unions in the 18th century, and today is an eight-hour working day. But, despite the normalization of the chart, it is directly opposite to something more powerful: biology

In a new study, scientists report that people whose internal body clocks tell them to lie down late but are then forced to wake Early,

Scientists shared their findings on Thursday in the journal SLEEP with the article, "Circadic phenotype affects the functional connectivity of the brain in rest, attention and sleepiness."

a researcher at Birmingham University, Elisa Fay that explains that while the different levels of brain connectivity do not always refer to something negative, in this study, the lower levels are less than positive, and during the experiment, scientists assess the brain function of 38 people while sleeping, measuring the levels of melatonin and cortisol with MRT scan, and were also asked to report their sleepiness levels and when they felt the most alarming during the day.

  The Science of Sleep in the Winter
"Night owls" are less compatible. with the working week of 9 to 5.

Eventually, they found that "morning lagers" had a higher resting brain connection ̵

1; which in turn was associated with better attention and lower sleepiness through the day during the whole business day. Facer-Childs explains that this probably means their brains were more primitive to perform tasks and be less drowsy.

Why some people are ready to wake up early and others are forced to lie down late from their genes. A study published in January in Nature Communications found that genes can even change the natural waking time of humans by up to 25 minutes. The two hormones involved in the sleep cycle and trace also play a role: the levels of melatonin and cortisol differ significantly between the two groups of people over a 24-hour period. These hormones run for "night owls" about three to four hours after "morning lagers." "We all know that some of us are better in the morning and some of us like to burn the night oil, but people do not want to think about why and how," explains Faker-Childs. "Our research examines an area of ​​science that is so important to each of us that makes it so accessible.

"I believe that taking into account individual differences in sleep patterns and body clocks can open a relatively unused source, can contribute to being the best, both mentally and physically." “/>

The weight of breakfast “/>
"Tomorrow's Pheasants" have more brain connectivity

This study also suggests that night owls are less compatible with work day 9 to 5 than people who naturally wake up earlier. It is theoretically assumed that lower levels of brain connectivity lead to less attention, slower reactions and increased sleepiness over a typical day. Facer-Childs believes this study, and others suggest that the solid 9-5 schedule may need to change.

"I believe the abundance of research that is now emerging and linking mismatch and sleep disruption to negative health and productivity supports the need to create more flexibility in our society," says Facer-Childs.

"I realize there is a need for some limited routine, but the ability to take these individual differences into account and to allow people a few hours of flexibility can have a significant impact."

Inspiration: Functional connectivity (FC) of the interconnected human brain networks is at the root of cognitive functioning and FK disorders are associated with sleep and neurological disorders. However, there are limited studies on the influence of the circadian phenotype and the time of day on FC.

OBJECTIVES OF THE STUDY: The purpose of this study is to investigate the state of the FC deflection of the default network (DMN) in the early and late circadian phenotypes. METHODS: 38 healthy subjects (14 men, 22.7 ± 4.2 years), classified as early (n = 16) or late (n = 22), using the ChronoType Munich questionnaire, participated. After a two-week baseline of 35 activations combined with saliva samples for melatonin and cortisol, the participants passed a test at 14:00, 20:00 and 08:00 the following morning. The test consisted of functional resting MRI, structural T1 scanning, cognitive tasks and self-assessment of daytime sleepiness. A FC analysis was performed on the seeds of the medial prefrontal and posterior cingulate corners of the DMN compared to the groups and related to behavioral data.

Full resume here.

Now look at this: Neurologist explains your brain for sleep deprivation.


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