Recommended Amount of Sleep for a Healthy Adult: A Joint Consensus Statement of the American Academy of Sleep Medicine and Sleep Research Society

Watson, Nathaniel F.; Badr, M. Safwan; Belenky, Gregory; Bliwise, Donald L.; Buxton, Orfeu M.; Buysse, Daniel J.; Dinges, David F.; Gangwisch, James E.; Grandner, Michael A.; Kushida, Clete A.; Malhotra, Raman K.; Martin, Jennifer L.; Patel, Sanjay R.; Quan, Stuart F.; Tasali, Esra; Twery, Michael J.; Croft, Janet B.; Maher, Elise; Barrett, Jerome A.; Thomas, Sherene M.; Heald, Jonathan L.

doi:10.5664/jcsm.4758

Cited by 482 publications

(322 citation statements)

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“…Good sleep strengthens cognitive capacities, such as memory and learning, and reduces the likelihood of making mistakes [1,2]. For these reasons, the sleeping habits of medical students are important to understand.…”

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Sleep Deprived and Overwhelmed: Sleep Behaviors of Medical Students in the USA

Grady

Roberts

2017

Acad Psychiatry

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Good sleep is essential to good health. Good sleep strengthens cognitive capacities, such as memory and learning, and reduces the likelihood of making mistakes [1,2]. For these reasons, the sleeping habits of medical students are important to understand. In this issue of Academic Psychiatry, three valuable empirical papers spontaneously submitted to the journal address this neglected topic in undergraduate medical education. Two studies were conducted at individual medical schools on the two US coasts and the other study involved 860 medical students from 49 different US medical colleges. Taken together, this unique set of data-based papers tells us a great deal about the current state of sleep among our early career colleagues. Sleep Behaviors of Medical StudentsAhmed et al.[3] performed a cross-sectional study of medical students at SUNY Downstate Medical School (n = 261). The authors found that, on average, more than 70% of students felt they needed 7 h of sleep each night; however, only one quarter of students slept an average of 7 h nightly. Most students slept considerably fewer hours routinely, and during the week of an examination, only 15% of preclinical students and 19% of clinical students had more than 7 h of sleep [3]. Clinical students had considerably more sleepiness than preclinical students and clinical students were also more knowledgeable about the topic of sleep. Preclinical and clinical students held similar views about sleep, as measured by the Dysfunctional Beliefs and Attitudes about Sleep (DBAS) scale [3]. This study also examined whether students used prescription sleep medication, over-the-counter sleeping pills, or behavioral sleep strategies. Most students reported that they "never" used prescription medications (80%) or over-the-counter sleeping pills (67%), while a small number reported using these methods "often/daily" (2%, 7%, respectively). Behavioral strategies were endorsed more commonly, with 13% using these approaches "often/daily" and 14% using them "occasionally/monthly." Overall, clinical students were more likely than preclinical students to use prescription medication, overthe-counter sleeping pills, and behavioral strategies.In their cross-sectional online survey of medical students (n = 860) across 49 medical schools in 29 states, Ayala et al.[4] similarly found that students slept less than 7 h each night (6.83 h, on average over the prior 4 weeks), with students receiving the least sleep in year 3 and the most sleep in year 2 of medical school. Students in their last year had fewer sleep problems, as measured by the Sleep Problems Index, which is a subset of items from the well-validated Medical Outcomes Sleep Study Scale.A vital and unique focus of the analyses in Ayala et al.'s study [4] related to the diminished quality of sleep of minority students. Minority students, defined as non-Caucasian, had more somnolence, which is reflective of daytime sleepiness, as well as lower self-reported levels of sleep adequacy and fewer hours of sleep per night. Minority studen...

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confidence: 99%

Sleep Deprived and Overwhelmed: Sleep Behaviors of Medical Students in the USA

Grady

Roberts

2017

Acad Psychiatry

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“…(9) Sleep specialists have pointed out the relevance of a subjective assessment -with the use PSQI, as has been the case with the present study -and the significance of interindividual differences, by stating that individuals who perceive to get very little or too much sleep should be instructed to seek a health care professional. (19) Furthermore, data analyzed in a longitudinal study after 2 years of treatment showed that five preoperative symptoms had a long-term predictive effect over the quality of life of women with breast cancer. These five symptoms were sleep disorders, cognitive symptoms, physical tiredness, depression, and anxiety.…”

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confidence: 99%

Variação longitudinal da qualidade do sono em mulheres com câncer de mama

Mansano-Schlosser

Ceolim

2016

Acta paul. enferm.

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Objectives: To compare sleep quality, depression, and hope in women with breast cancer over an approximate period of 1 year. Methods: This longitudinal study included 107 women assisted at a teaching hospital. The following instruments were used: Questionnaire on Socio-demographic and Clinical Characteristics; Pittsburgh Sleep Quality Index; Beck Depression Inventory; and Herth Hope Scale. Data were collected at T0, before tumor removal surgery, and after surgery at T1 (average of 3.2 months), T2 (average of 6.1 months), and T3 (average of 12.4 months). Results: Poor sleep quality persisted over the follow-up; hope increased at T1; the proportion of women with moderate and severe depression increased at T3. There was a significant correlation among scores indicating sleep quality, depression, and hope in all four time points. Conclusion: Our study findings suggest the significance of long-term follow-up. ResumoObjetivo: Comparar a qualidade do sono, a depressão e a esperança em mulheres com câncer de mama ao longo de aproximadamente um ano. Métodos: Estudo longitudinal, com 107 mulheres, em hospital universitário. Foram utilizados os instrumentos: questionário de caracterização sociodemográfica e clínica; Índice de Qualidade do Sono de Pittsburgh; Inventário de Depressão de Beck e Escala de Esperança de Herth. Os dados foram coletados em T0, antes da cirurgia de retirada do tumor, e após a mesma em: T1, em média 3,2 meses; T2, em média 6,1 meses; em T3, em média 12,4 meses. Resultados: A má qualidade do sono persistiu ao longo do seguimento; a esperança aumentou em T1; a proporção de mulheres com depressão moderada e grave elevou-se em T3. Houve correlação significativa entre os escores indicativos de qualidade do sono, de depressão e de esperança nos quatro tempos. Conclusão: Os achados deste estudo indicam a importância do seguimento por tempo prolongado.

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“…In the opinion of the majority of authors, the lowest occurrence of excessive body mass in adults is related to sleep lasting at least 7 h [7][8][9]. However, so far, the association between longer sleep duration, the state of health, and the risk of obesity has not been fully explained [10][11][12][13][14]. Moreover, in studies conducted to date, a higher body mass index (BMI) has been adopted as an indicator of obesity.…”

Section: Introductionmentioning

confidence: 99%

Sleep duration and the risk of obesity – a cross-sectional study

Suliga¹,

Kozieł²,

Cieśla³

et al. 2017

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Introduction: So far, the association between a longer sleep duration, state of health, and the risk of obesity and the influence of gender on the association between sleep duration and the risk of obesity has not been fully explained. Aim of the research: To examine the relationships between self-reported sleep duration, body mass index (BMI), and body fat percentage (%BF), and also to determine whether such associations are the same in men and in women. Material and methods: This study included 10,367 participants aged 37 to 66 years. Logistic regression was applied for risk assessment of the prevalence of abnormal BMI values and %BF in groups of sleep duration. Sleep of 7-8 h per night was adopted as a reference level. Results: In men, the risk of obesity was significantly greater only in the group sleeping ≤ 6 h (OR = 1.18, 95% CI: 1.08-1.28; p < 0.05); however, in women, only among those sleeping ≥ 9 h (OR = 1.14, 95% CI: 1.02-1.26; p < 0.05). The risk of obesity, determined on the basis of %BF, was higher only in individuals sleeping ≥ 9 h. In the adjusted model, it turned out to be significant in the general study population (OR = 1.28, 95% CI: 1.07-1.53; p < 0.05) and in women (OR = 1.14, 95% CI: 1.03-1.27; p < 0.05). Conclusions: In women, a greater risk of obesity was related to a longer sleep duration (≥ 9 h), whereas in men, the tendency of obesity occurrence along with shorter sleep (≤ 6 h). Thus, the physiological consequences of sleep duration may be different in women than in men.

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Recommended Amount of Sleep for a Healthy Adult: A Joint Consensus Statement of the American Academy of Sleep Medicine and Sleep Research Society

Cited by 482 publications

References 1 publication

Sleep Deprived and Overwhelmed: Sleep Behaviors of Medical Students in the USA

Sleep Deprived and Overwhelmed: Sleep Behaviors of Medical Students in the USA

Variação longitudinal da qualidade do sono em mulheres com câncer de mama

Sleep duration and the risk of obesity – a cross-sectional study

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