Associations of serum zinc, copper, and selenium with sleep disorders in the American adults: Data from NHANES 2011–2016

BackgroundEven though various studies have been conducted to investigate the relationship between trace metals and sleep, few epidemiological studies have evaluated the relationship between trace metals and sleep disorders in American adults.ObjectiveThis study intended to evaluate the associations of serum zinc (Zn), copper (Cu), selenium (Se), Zn/Cu, Zn/Se, and Cu/Se ratios with sleep disorders in …

Continue reading Associations of serum zinc, copper, and selenium with sleep disorders in the American adults: Data from NHANES 2011–2016

Reported sleep duration reveals segmentation of the adult life-course into three phases

Classically the human life-course is characterized by youth, middle age and old age. A wide range of biological, health and cognitive functions vary across this life-course. Here, using reported sleep duration from 730,187 participants across 63 countries, we find three distinct phases in the adult human life-course: early adulthood (19-33yrs), mid-adulthood (34-53yrs), and late adulthood …

Continue reading Reported sleep duration reveals segmentation of the adult life-course into three phases

Associations of sleep timing and time in bed with dementia and cognitive decline among Chinese older adults: A cohort study

Background: The longitudinal associations of sleep timing and time in bed (TIB) with dementia and cognitive decline in older adults are unclear. Methods: This population-based cohort study used data from 1982 participants who were aged ≥60 years, free of dementia, and living in rural communities in western Shandong, China. At the baseline (2014) and follow-up …

Continue reading Associations of sleep timing and time in bed with dementia and cognitive decline among Chinese older adults: A cohort study

Sleep patterns, genetic susceptibility, and incident cardiovascular disease: a prospective study of 385 292 UK biobank participants

To quantify the association of combined sleep behaviours and genetic susceptibility with the incidence of cardiovascular disease (CVD).Methods and resultsThis study included 385 292 participants initially free of CVD from UK Biobank. We newly created a healthy sleep score according to five sleep factors and defined the low-risk groups as follows: early chronotype, sleep 7–8 h per …

Continue reading Sleep patterns, genetic susceptibility, and incident cardiovascular disease: a prospective study of 385 292 UK biobank participants

Light at night in older age is associated with obesity, diabetes, and hypertension

Light at night (LAN) has been associated with negative health consequences and metabolic risk factors. Little is known about the prevalence of LAN in older adults in the U.S. and its association with cardiovascular disease (CVD) risk factors. We tested the hypothesis that LAN in older age is associated with higher prevalence of individual CVD …

Continue reading Light at night in older age is associated with obesity, diabetes, and hypertension