Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study Links Shorter Sleep Durations with Greater Risks of Mental Distress in Young Adults

01.09.2010
Young adults who get fewer than eight hours of sleep per night have greater risks of psychological distress, a combination of high levels of depressive and anxious symptoms, according to a study in the Sept. 1 issue of the journal SLEEP.

Using an average self-reported nightly sleep duration of eight to nine hours as a reference, the study found a linear association between sleep durations of less than eight hours and psychological distress in young adults between 17 and 24 years of age.

The risk of psychological distress increased by 14 percent for each hour of nightly sleep loss, such that those sleeping less than six hours a night were twice as likely to be experiencing distress as average sleepers. A similar association was found between sleep duration and persistent psychological distress; the risk that a person with psychological distress at baseline would be distressed at the one-year follow-up increased by five percent for each hour of nightly sleep loss after adjusting for potential confounders (RR 1.05). Long sleep durations of more than nine hours showed no association with distress at any time point.

“In young adults already experiencing distress, the fewer hours they sleep the worse the outcome across the range of sleep hours,” said lead author Nick Glozier, MBBS, MRCPsych, PhD, associate professor of psychological medicine at the Brain and Mind Research Institute and the Centre for Integrated Research and Understanding of Sleep (CIRUS) at the University of Sydney in Australia.

The study also found that the risk for the onset of psychological distress was increased only in those young adults with extremely short sleep durations. Participants without psychological distress at baseline who reported sleeping five hours or less per night were three times more likely to be distressed one year later (RR 3.25).

“Short sleep duration increases the risk of a new onset of distress only among the very shortest sleepers, and doesn’t appear to have a psychological impact in young adults in good mental health with moderately short sleep durations, such as seven hours a night” said Glozier.

In 2007 the U.S. Substance Abuse and Mental Health Services Administration estimated that 17.9 percent of young adults between the ages of 18 and 25 years experienced serious psychological distress in the past year. The Australian Bureau of Statistics reported that 26 percent of all young people between 16 and 24 years of age had a mental disorder in 2007.

Conducted at The George Institute for Global Health of the University of Sydney, the DRIVE study involved 20,822 young adults in New South Wales, Australia. Participants completed a confidential survey, reporting the number of hours slept on both weekday and weekend nights during the past month. The data were weighted to determine respondents’ average nightly sleep duration. Thirty percent of participants slept for seven to eight hours per night, and 18 percent reported sleeping less than seven hours. Fewer than two percent of study subjects had an extremely short sleep duration of less than five hours per night.

Psychological distress was assessed using the Kessler Psychological Distress Scale (K10), a widely used 10-item screening instrument that evaluates a person’s mental health problems during the previous four weeks. It includes questions that ask about feeling tired, nervous, hopeless, restless, depressed, sad and worthless. A high score indicates that a person is likely to be suffering from a mental disorder. About 32.5 percent of young adults in the study had high levels of current psychological distress at baseline.

A randomly selected subsample of 2,937 participants completed a follow-up survey between 12 and 18 months after the baseline survey. A new onset of psychological distress was found in 239 of 1,992 participants (12 percent) who did not report psychological distress at baseline. Persistent psychological distress was found in 419 of 945 respondents (44 percent) who were distressed at baseline.

The authors noted that the relationship between sleep and psychological distress is complex. Although short sleep duration could be a real risk for distress, it is possible that sleep loss is a symptom of previous episodes of psychological distress that have got better, or that sleep disturbances reflect a comorbid condition that hinders distress from resolving. This study’s findings suggest that recent increases in the levels of distress reported by young adults may be related to changes in their sleep patterns.

“The increased reporting of stress seen in many countries over the past decade or two in this young adult population may reflect lifestyle or other changes that lead to too few hours of sleep,” Glozier said.

According to the authors, broad approaches to increase sleep duration in all young adults are unwarranted. Instead, interventions should target young adults who have either current distress or an extremely short sleep duration. Other studies show that potential targets for improving sleep in this age group include delaying school start times and reducing the amount of time at night that young adults spend watching TV, playing video games and using the Internet before going to bed.

The peer-reviewed, scientific journal SLEEP is published monthly by the Associated Professional Sleep Societies LLC, a joint venture of the American Academy of Sleep Medicine and the Sleep Research Society. The AASM is a professional membership society that is the leader in setting standards and promoting excellence in sleep medicine health care, education and research.

For a copy of the study, “Short sleep duration in prevalent and persistent psychological distress in young adults: the DRIVE study,” or to arrange an interview with an AASM spokesperson, please contact Public Relations Coordinator Emilee McStay at 630-737-9700, ext. 9345, or emcstay@aasmnet.org.

Emilee McStay | EurekAlert!
Further information:
http://www.aasmnet.org

More articles from Studies and Analyses:

nachricht Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT

nachricht Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts

08.12.2016 | Power and Electrical Engineering

NTU scientists build new ultrasound device using 3-D printing technology

07.12.2016 | Health and Medicine

The balancing act: An enzyme that links endocytosis to membrane recycling

07.12.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>