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How Sleep Strengthens Your Immune System
Numerous studies have reported the benefits of a good night’s sleep, and now researchers from Germany have found that sound sleep improves immune cells known as T cells.
“T cells are a type of… immune cells that fight against intracellular pathogens, for example virus-infected cells such as flu, HIV, herpes, and cancer cells,” Stoyan Dimitrov, PhD, told Healthline.
The study found a new mechanism through which sleep can assist the immune system.
“We show that the stress hormones adrenaline and noradrenaline and pro-inflammatory molecules prostaglandins inhibit the stickiness of a class of adhesion molecules called integrins,” Dr. Dimitrov said. “Because the levels of adrenaline, noradrenaline, and prostaglandins are low during sleep time, the stickiness of the integrins is stronger. This stickiness is important because in order for T cells to kill virus-infected cells or cancer cells, they need to get in direct contact with them, and the integrin stickiness is known to promote this contact.”
When cells in the body recognize a virally infected cell, they activate integrins, a sticky type of protein, that then allows them to attach to and kill infected cells.
The researchers compared T cells from healthy volunteers who either slept or stayed awake all night.
They found that in the study participants who slept, their T cells showed higher levels of integrin activation than in the T cells of those who were awake.
The findings indicate that sleep has the potential to improve T cell functioning. For people who get poor sleep, stress hormones may inhibit the ability of T cells to function as effectively.
Less than five hours sleep per night on a regular basis is associated with higher mortality, and having less than seven hours sleep for three nights in a row has the same effect on the body as missing one full night of sleep.
Poor sleep can increase inflammation, blood pressure, insulin resistance, cortisol, weight gain, and cardiovascular disease, as well as decrease blood sugar regulation.
Despite numerous studies proving the negative health impacts of poor sleep, experts say many people still don’t prioritize getting enough sleep.
Adaptado de: <https://www.healthline.com/health-news/how-sleepbolsters-your-immune-system#The-bottom-line> Acessado em 21 de fevereiro de 2019.
How Sleep Strengthens Your Immune System
Numerous studies have reported the benefits of a good night’s sleep, and now researchers from Germany have found that sound sleep improves immune cells known as T cells.
“T cells are a type of… immune cells that fight against intracellular pathogens, for example virus-infected cells such as flu, HIV, herpes, and cancer cells,” Stoyan Dimitrov, PhD, told Healthline.
The study found a new mechanism through which sleep can assist the immune system.
“We show that the stress hormones adrenaline and noradrenaline and pro-inflammatory molecules prostaglandins inhibit the stickiness of a class of adhesion molecules called integrins,” Dr. Dimitrov said. “Because the levels of adrenaline, noradrenaline, and prostaglandins are low during sleep time, the stickiness of the integrins is stronger. This stickiness is important because in order for T cells to kill virus-infected cells or cancer cells, they need to get in direct contact with them, and the integrin stickiness is known to promote this contact.”
When cells in the body recognize a virally infected cell, they activate integrins, a sticky type of protein, that then allows them to attach to and kill infected cells.
The researchers compared T cells from healthy volunteers who either slept or stayed awake all night.
They found that in the study participants who slept, their T cells showed higher levels of integrin activation than in the T cells of those who were awake.
The findings indicate that sleep has the potential to improve T cell functioning. For people who get poor sleep, stress hormones may inhibit the ability of T cells to function as effectively.
Less than five hours sleep per night on a regular basis is associated with higher mortality, and having less than seven hours sleep for three nights in a row has the same effect on the body as missing one full night of sleep.
Poor sleep can increase inflammation, blood pressure, insulin resistance, cortisol, weight gain, and cardiovascular disease, as well as decrease blood sugar regulation.
Despite numerous studies proving the negative health impacts of poor sleep, experts say many people still don’t prioritize getting enough sleep.
Adaptado de: <https://www.healthline.com/health-news/how-sleepbolsters-your-immune-system#The-bottom-line> Acessado em 21 de fevereiro de 2019.
New Parents Don’t Get Enough Sleep for Six Years After a Child Is Born
Those first three months with a newborn can be rough, but researchers say sleep deprivation is an issue with parents for years. New parents are sometimes shocked to discover how little sleep they get in the first six months after a baby is born. They might also be discouraged to learn that their sleep patterns might not return to normal until that newborn is ready for kindergarten.
A new study published in the journal Sleep found that both parental sleep satisfaction and sleep duration sharply declined after childbirth, hitting their lowest point when a baby is 3 months old.
Women’s sleep duration and quality were far more affected than men, whether or not they breastfed their child. Women lost an average of one hour of sleep nightly compared to what they got prior to pregnancy, while men lost about 15 minutes of sleep per night.
Even four to six years after childbirth, mothers were getting 20 minutes less sleep per night than before they became pregnant, while fathers were still getting 15 minutes less sleep.
“The short-term effects of childbirth on parental sleep is well known. Our study just confirmed these effects,” Lemola told Healthline. “However, it was largely unexpected to find decreased sleep duration and sleep satisfaction six years after birth.”
Sleep was more affected among first-time parents than among parents with more than one child.
The findings were based on interviews of 4,659 parents who had a child between 2008 and 2015.
“While having children is a major source of joy for most parents, it is possible that increased demands and responsibilities associated with the role as a parent lead to shorter sleep and decreased sleep quality even up to six years after birth of the first child,” said Lemola.
Lemola said that future research would be required to determine how parents can cope with sleep loss and regain their sleep patterns sooner.
Adaptado de: <https://www.healthline.com/health-news/newparents-dont-get-sound-sleep-for-6-years#The-bottom-line> Acessado em 04 de março de 2019
New Parents Don’t Get Enough Sleep for Six Years After a Child Is Born
Those first three months with a newborn can be rough, but researchers say sleep deprivation is an issue with parents for years. New parents are sometimes shocked to discover how little sleep they get in the first six months after a baby is born. They might also be discouraged to learn that their sleep patterns might not return to normal until that newborn is ready for kindergarten.
A new study published in the journal Sleep found that both parental sleep satisfaction and sleep duration sharply declined after childbirth, hitting their lowest point when a baby is 3 months old.
Women’s sleep duration and quality were far more affected than men, whether or not they breastfed their child. Women lost an average of one hour of sleep nightly compared to what they got prior to pregnancy, while men lost about 15 minutes of sleep per night.
Even four to six years after childbirth, mothers were getting 20 minutes less sleep per night than before they became pregnant, while fathers were still getting 15 minutes less sleep.
“The short-term effects of childbirth on parental sleep is well known. Our study just confirmed these effects,” Lemola told Healthline. “However, it was largely unexpected to find decreased sleep duration and sleep satisfaction six years after birth.”
Sleep was more affected among first-time parents than among parents with more than one child.
The findings were based on interviews of 4,659 parents who had a child between 2008 and 2015.
“While having children is a major source of joy for most parents, it is possible that increased demands and responsibilities associated with the role as a parent lead to shorter sleep and decreased sleep quality even up to six years after birth of the first child,” said Lemola.
Lemola said that future research would be required to determine how parents can cope with sleep loss and regain their sleep patterns sooner.
Adaptado de: <https://www.healthline.com/health-news/newparents-dont-get-sound-sleep-for-6-years#The-bottom-line> Acessado em 04 de março de 2019
New Parents Don’t Get Enough Sleep for Six Years After a Child Is Born
Those first three months with a newborn can be rough, but researchers say sleep deprivation is an issue with parents for years. New parents are sometimes shocked to discover how little sleep they get in the first six months after a baby is born. They might also be discouraged to learn that their sleep patterns might not return to normal until that newborn is ready for kindergarten.
A new study published in the journal Sleep found that both parental sleep satisfaction and sleep duration sharply declined after childbirth, hitting their lowest point when a baby is 3 months old.
Women’s sleep duration and quality were far more affected than men, whether or not they breastfed their child. Women lost an average of one hour of sleep nightly compared to what they got prior to pregnancy, while men lost about 15 minutes of sleep per night.
Even four to six years after childbirth, mothers were getting 20 minutes less sleep per night than before they became pregnant, while fathers were still getting 15 minutes less sleep.
“The short-term effects of childbirth on parental sleep is well known. Our study just confirmed these effects,” Lemola told Healthline. “However, it was largely unexpected to find decreased sleep duration and sleep satisfaction six years after birth.”
Sleep was more affected among first-time parents than among parents with more than one child.
The findings were based on interviews of 4,659 parents who had a child between 2008 and 2015.
“While having children is a major source of joy for most parents, it is possible that increased demands and responsibilities associated with the role as a parent lead to shorter sleep and decreased sleep quality even up to six years after birth of the first child,” said Lemola.
Lemola said that future research would be required to determine how parents can cope with sleep loss and regain their sleep patterns sooner.
Adaptado de: <https://www.healthline.com/health-news/newparents-dont-get-sound-sleep-for-6-years#The-bottom-line> Acessado em 04 de março de 2019
Texto 6
From: https://goo.gl/ngNDf2. Accessed on 11/05/2018
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Texto 3
What is domestic violence and abuse?
When people think of domestic abuse, they often focus on domestic violence. But domestic abuse occurs whenever one person in an intimate relationship or marriage tries to dominate and control the other person. Domestic violence and abuse are used for one purpose and one purpose only: to gain and maintain total control over you. An abuser doesn’t “play fair.” Abusers use fear, guilt, shame, and intimidation to wear you down and keep you under their thumb. Your abuser may also threaten you, hurt you, or hurt those around you.
Domestic violence and abuse do not discriminate. Abuse happens among heterosexual couples and in same-sex partnerships. It occurs within all age ranges, ethnic backgrounds, and economic levels. And while women are more commonly victimized, men are also abused – especially verbally and emotionally. The bottom line is that abusive behavior is never acceptable, whether it’s coming from a man, a woman, a teenager, or an older adult.
From: https://goo.gl/ZoQWV6. Accessed on 11/07/2018
Texto 3
What is domestic violence and abuse?
When people think of domestic abuse, they often focus on domestic violence. But domestic abuse occurs whenever one person in an intimate relationship or marriage tries to dominate and control the other person. Domestic violence and abuse are used for one purpose and one purpose only: to gain and maintain total control over you. An abuser doesn’t “play fair.” Abusers use fear, guilt, shame, and intimidation to wear you down and keep you under their thumb. Your abuser may also threaten you, hurt you, or hurt those around you.
Domestic violence and abuse do not discriminate. Abuse happens among heterosexual couples and in same-sex partnerships. It occurs within all age ranges, ethnic backgrounds, and economic levels. And while women are more commonly victimized, men are also abused – especially verbally and emotionally. The bottom line is that abusive behavior is never acceptable, whether it’s coming from a man, a woman, a teenager, or an older adult.
From: https://goo.gl/ZoQWV6. Accessed on 11/07/2018
When the OECD launched the Programme for International Student Assessment — PISA — the idea was to enable countries to make cross-national comparisons of student achievement using a common/standard metric to increase human capital. In other words, higher academic achievement should corelate with earnings in the future and a country’s standard of living. As PISA states, it publishes the results of the test a year after the students are tested to help governments shape their education policies.
As PISA has developed, through seven global testing rounds every three years, with the first in 2000 and the most recent in 2018, for some it has gained a reputation as the “Olympics of education” given the widespread attention that country rankings receive following the release of results.
Now, partly in the face of criticisms, PISA is looking at expanding how and what it tests. As this process unfolds, policy-makers must remember that the social consequences of a test are just as important as the test’s content. Putting a new face on PISA will undoubtedly present various opportunities and challenges.
To date, PISA has been restricted to what is generally called the “cognitive” side of learning, focusing on reading, mathematics and scientific literacy. In addition to test questions, students and school principals fill out questionnaires to provide contextual information on student and school environment characteristics that can be associated with more or less favourable performance.
Countries that excel in PISA tests, such as Finland, a country with less than six million people, have become regarded by policy-makers as a “global reference society” — an ideal to aspire to — due to their high performance in PISA rankings.
Asian countries or jurisdictions like Singapore, Hong Kong (China) and Japan tend to consistently achieve exceptional PISA performances and hence get a lot of attention from other countries wishing to emulate their success via borrowing policy. For example, England flew teachers out to China to study mathematics teaching.
In the next administration in 2021, PISA will tackle creative thinking, trying to find ways to assess, and have students assess, flexibility in thinking and habits of creativity such as being inquisitive and persistent. The PISA team is also developing a way of testing students’ digital learning, which should be ready in time for the 2024 assessment.
However, it should be remembered that education policies from high achieving nations don’t migrate across international boundaries without consideration given to national and cultural contexts. Rather, innovations and changes in education require teachers to have the time and opportunity to re-educate themselves in relation to more recent insights in what it means to get the best out of children.
When the OECD launched the Programme for International Student Assessment — PISA — the idea was to enable countries to make cross-national comparisons of student achievement using a common/standard metric to increase human capital. In other words, higher academic achievement should corelate with earnings in the future and a country’s standard of living. As PISA states, it publishes the results of the test a year after the students are tested to help governments shape their education policies.
As PISA has developed, through seven global testing rounds every three years, with the first in 2000 and the most recent in 2018, for some it has gained a reputation as the “Olympics of education” given the widespread attention that country rankings receive following the release of results.
Now, partly in the face of criticisms, PISA is looking at expanding how and what it tests. As this process unfolds, policy-makers must remember that the social consequences of a test are just as important as the test’s content. Putting a new face on PISA will undoubtedly present various opportunities and challenges.
To date, PISA has been restricted to what is generally called the “cognitive” side of learning, focusing on reading, mathematics and scientific literacy. In addition to test questions, students and school principals fill out questionnaires to provide contextual information on student and school environment characteristics that can be associated with more or less favourable performance.
Countries that excel in PISA tests, such as Finland, a country with less than six million people, have become regarded by policy-makers as a “global reference society” — an ideal to aspire to — due to their high performance in PISA rankings.
Asian countries or jurisdictions like Singapore, Hong Kong (China) and Japan tend to consistently achieve exceptional PISA performances and hence get a lot of attention from other countries wishing to emulate their success via borrowing policy. For example, England flew teachers out to China to study mathematics teaching.
In the next administration in 2021, PISA will tackle creative thinking, trying to find ways to assess, and have students assess, flexibility in thinking and habits of creativity such as being inquisitive and persistent. The PISA team is also developing a way of testing students’ digital learning, which should be ready in time for the 2024 assessment.
However, it should be remembered that education policies from high achieving nations don’t migrate across international boundaries without consideration given to national and cultural contexts. Rather, innovations and changes in education require teachers to have the time and opportunity to re-educate themselves in relation to more recent insights in what it means to get the best out of children.
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