March 13 marks World Sleep Day, which aims to highlight the importance of sleep and help us get more of it. Sleep is now known to be an essential part of good health, and yet an increasing number of us don't get enough good quality shut-eye. With this in mind we round up four studies which emphasise how sleep could boost our health and well-being and what might motivate us to get more of it.
It could improve
As well as the recent focus on the importance of sleep for our health, there has also been a lot of research looking into how our gut can affect our well-being. The findings from a study published last year in the journal PLoS ONE showed that in fact, a bad night's sleep has a negative effect on gut health, which in turn could lead to other health issues. Although the study was a preliminary one and looked at just 26 male participants, the researchers found increased sleep efficiency, which is the percentage of time spent asleep in bed, and total sleep time were positively associated with a more diverse gut microbiome, which is also known to be a better gut microbiome. The more diverse someone's gut microbiome is, the likelier they are to have better overall health.
It could boost mental health
Research has also shown that getting enough shut-eye could have a positive effect on our mental health, including the mental health of children and teens. A recent study published earlier this year found that after following 799 children from the age of six to 12, those who got the least sleep had the greatest risk of developing mental health issues. Boys who slept the least hours had an increased risk of developing behavioral problems, and both boys and girls who slept the least had a higher risk of future emotional problems. Another study, published last year, which looked at 110,496 college students also found that insufficient sleep was associated with a variety of mental health problems and symptoms including depression, feelings of hopelessness and anger, and anxiety.
It can protect your heart
More and more studies are now looking how sleep can affect our heart health. One study that looked at 1,992 men and women aged 45 to 84 years old over a five-year period found that participants who got a different amount of sleep each night or who had no regular bedtime and wake-up times had more than double the risk of experiencing a cardiovascular event compared to those with the most regular sleep patterns. A large-scale study published last year which looked at 461,347 individuals age 40 to 69 also found sleeping less than six hours per night was associated with a 20 percent higher risk of having a heart attack compared to those who slept six to nine hours per night, and sleeping more than nine hours each night was associated with a 34 percent higher risk.
It could boost your performance
Sleep, or a lack of it, could be affecting the academic performance of kids in school, and our own performance at work according to recent research. A large-scale study which looked at 49,050 children and teens age six to 17-years old found that children who get a sufficient amount of sleep on week nights are 44 percent more likely to show interest and curiosity in learning new things, 33 percent more likely to do their homework, 28 percent more likely to care about doing well in school, and 14 percent more likely to finish tasks, compared with children who did not get sufficient sleep. A US study which looked at the effect of 24 hours of sleep deprivation on 234 adult participants also found that a lack of sleep can decrease our ability to complete tasks, leading to mistakes at work that can range from basic errors to possibly even dangerous mistakes.