Sleep duration irregularity is associated with elevated blood pressure in young adults

Acute beetroot juice reduces blood pressure in young Black and White males but not females

“…As we have reviewed previously, differences in social determinants of health can influence health behaviors such as leisure physical activity, sleep, and diet [ 3 ]. For example, self-reported childhood neighborhood safety mediates racial differences in sleep in young adults [ 115 ], and our group and others have observed that poor sleep contributes to worse CV health, even in young adults [ [116] , [117] , [118] ]. More specifically, in a comparable population of young adults we previously demonstrated that higher BP was associated with sleep irregularity (i.e., variability in nightly sleep duration) [ 56 ], which was greater in Black vs. White participants in the present study.…”

“…Actigraphy-derived sleep metrics were characterized as previously described [ 56 ]. In brief, participants were provided with an ActiGraph GT9X Link activity monitor (ActiGraph Corp, Pensacola FL, USA) and were instructed to wear the monitor on the dorsal side of the non-dominant wrist for 24 h a day for seven consecutive days and nights.…”

Effects of sleep disturbance on dyspnoea and impaired lung function following hospital admission due to COVID-19 in the UK: a prospective multicentre cohort study

“…Although this association has not previously been widely reported, the sleep regularity index has been associated with morbidity in other studies. 31 , 32 , 33 …”

Association between napping and 24-hour blood pressure variability among university students: A pilot study

“…Since no previous studies have reported the association between nap and BPV. We used the correlation coefficients between sleep and blood pressure in previous studies, previous studies reported correlations within the range of between 0.25 to 0.45 (18,19). Determination of the minimum sample size was calculated by the following estimates: (i) expected correlation between the two variables (r = 0.35), (ii) statistical power = 90%, (iii) Alpha = 5%, (iv) correlation coefficient of the null hypothesis (r = 0.0), (v) dropout rate = 20%.…”