Physiological and autonomic stress responses after prolonged sleep restriction and subsequent recovery sleep in healthy young men.
Wessel M A van LeeuwenMikael SallinenJussi VirkkalaHarri LindholmAri HirvonenChrister HublinTarja Porkka-HeiskanenMikko HärmäPublished in: Sleep and biological rhythms (2017)
Increased heart rate and LF/HF power ratio are early signs of an increased sympathetic activity after prolonged sleep restriction. To reliably interpret the clinical significance of these early signs of physiological stress, a follow-up study would be needed to evaluate if the stress responses escalate and lead to more unfavourable reactions, such as elevated blood pressure and a subsequent elevated risk for cardiovascular health problems.