Peer-Reviewed Journal Details
Mandatory Fields
Lü, W,Hughes, BM,Howard, S,James, JE
2018
February
Biological Psychology
Sleep restriction undermines cardiovascular adaptation during stress, contingent on emotional stability
Published
Optional Fields
Sleep restriction Cardiovascular adaptation Stress Emotional stability DIETARY CAFFEINE PHYSIOLOGICAL-RESPONSES RECURRENT STRESS SOCIAL SUPPORT REACTIVITY PERSONALITY DISEASE DEPRIVATION HABITUATION DURATION
132
125
132
Sleep loss is associated with increased cardiovascular disease, but physiological mechanisms accounting for this relationship are largely unknown. One possible mechanism is that sleep restriction exerts effects on cardiovascular stress responses, and that these effects vary between individuals. Emotional stability (ES) is a personality trait pertinent to sleep restriction and stress responding. However, no study to date has explored how ES and sleep-restriction interactively affect cardiovascular stress responses or processes of adaptation during stress. The present study sought to investigate the association between ES and impact of sleep restriction on cardiovascular function during stress, with particular regard to the trajectory of cardiovascular function change across time. Ninety female university students completed a laboratory vigilance stress task while undergoing continuous cardiovascular (SBP, DBP, HR, SV, CO, TPR) monitoring, after either a night of partial sleep restriction (40% of habitual sleep duration) or a full night's rest. Individuals high in ES showed stable and adaptive cardiovascular (SBP, SV, CO) responses throughout stress exposure, regardless of sleep. In contrast, individuals low in ES exhibited cardiovascular adaptation during stress exposure while rested, but disrupted adaption while sleep-restricted. These findings suggest that sleep-restriction undermines healthful cardiovascular adaptation to stress for individuals low in ES.
10.1016/j.biopsycho.2017.11.013
Grant Details
Publication Themes