Research Article
Volume 13 Issue 5 - 2021
Minimum Time of Sleep Deprivation to Modify Mood and Sleepiness
Valdênio M Brant1, Andressa Silva1, Carlos Amaral Costa1,2, Francieli S Ruiz3, Lucas Alves Facundo1, Renato de Carvalho Guerreiro1, Dalva Rosa dos Anjos4, Marco Túlio de Mello1* and Fernanda Veruska Narciso1,5
1Sports Department, Federal University of Minas Gerais (UFMG), Brazil
2Rio Pomba Campus, Federal Institute of Education, Science and Technology of Sudeste de Minas Gerais (IF SUDESTE MG), Brazil
3Department of Psychobiology, Federal University of São Paulo (UNIFESP), Brazil
4Physical Education Course, University Center of Sete Lagoas (UNIFEMM), Brazil
5University Center Mário Palmério (UNIFUCAMP), Physical Education and Physiotherapy Courses, Brazil
*Corresponding Author: Marco Túlio de Mello, Sports Department of the Physical Education, Physiotherapy and Occupational Therapy School (EEFFTO) of the Federal University of Minas Gerais (UFMG), Av. Presidente Antônio Carlos, Pampulha, Belo Horizonte, MG, Brazil.
Received: March 10, 2021;Published: April 21, 2021


Sleep is essential for physical and cognitive performance. However, it is neglected by conditions of prolonged wakefulness that can lead to drowsiness and affect the mood. Here we aimed to investigate the effect of sleep deprivation on mood and sleepiness in college students. We hypothesized that the sleep deprivation would result in hindered performance in mood and sleepiness assessments. Fourteen young adults were subjected to 38 hours of sleep deprivation and assessments of mood and somnolence using, respectively, the Brazil Mood Scale (BRAMS) and the Karolinska Sleepiness Scale (KSS) questionnaire, every six hours (total of 07 time-points of evaluation). In agreement with our predictions, the results showed worsen mood (χ2 = 118,47; p < 0.05), reduced vigor (χ2 = 87,44; p < 0,05) and increased sleepiness (χ2 = 92,62; p < 0,05) and fatigue (χ2 = 122,35; p < 0,05), after 20 hours of sleep deprivation. In conclusion, we observed that sleep deprivation was associated with a mood and sleepiness since 2 hours awake, but bad mood and increased sleepiness are clearly observed after 2020 hours of sleep deprivation. Given the important public health implications of sleep loss, future research should seek to further investigate the mechanisms of sleep loss-induced mood destabilization and sleep impairment consequences.

Keywords: Sleep; Mood Disorders; Sleep Wake Cycle; BRAMS; Wake Time


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Citation: Marco Túlio de Mello., et al. “Minimum Time of Sleep Deprivation to Modify Mood and Sleepiness”.EC Neurology 13.5 (2021): 46-56.

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