Managing neurobehavioral capability when social expediency trumps biological imperatives

Department of Psychology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA.
Progress in brain research (Impact Factor: 2.83). 08/2012; 199:377-98. DOI: 10.1016/B978-0-444-59427-3.00021-6
Source: PubMed


Sleep, which is evolutionarily conserved across species, is a biological imperative that cannot be ignored or replaced. However, the percentage of habitually sleep-restricted adults has increased in recent decades. Extended work hours and commutes, shift work schedules, and television viewing are particularly potent social factors that influence sleep duration. Chronic partial sleep restriction, a product of these social expediencies, leads to the accumulation of sleep debt over time and consequently increases sleep propensity, decreases alertness, and impairs critical aspects of cognitive functioning. Significant interindividual variability in the neurobehavioral responses to sleep restriction exists-this variability is stable and phenotypic-suggesting a genetic basis. Identifying vulnerability to sleep loss is essential as many adults cannot accurately judge their level of impairment in response to sleep restriction. Indeed, the consequences of impaired performance and the lack of insight due to sleep loss can be catastrophic. In order to cope with the effects of social expediencies on biological imperatives, identification of biological (including genetic) and behavioral markers of sleep loss vulnerability as well as development of technological approaches for fatigue management are critical.

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Available from: Namni Goel, Aug 14, 2014
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    • "Sleep debt can accumulate over the work week or shift cycle and without sufficient time to recover, individuals remain vulnerable to sleep loss (Banks et al. 2010; Sallinen and Kecklund 2010). Accumulated sleep loss is often used to explain the relationship between shift work and impaired cognitive performance, safety implications and an increased risk of lifestyle-related illness (Härmä 2006; Spaeth, Goel, and Dinges 2012). Next to the impact of the work schedule, inter-individual variability in sleep duration and quality amongst shift workers is related to differences in the individual phase of entrainment (chronotype) (Roenneberg, Wirz-Justice, and Merrow 2003; Kantermann et al. 2010; Roenneberg et al. 2012). "
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