Late bedtimes linked to increased risk of angina ;finds study
Sleep loss is a common condition in developed countries, with evidence showing that people in Western countries are sleeping on average only 6.8 hour (hr) per night, 1.5 hr less than a century ago. Previous studies have established that although the effects of sleep deprivation on our organs have been obscure, recent epidemiological studies have revealed relationships between...
Sleep loss is a common condition in developed countries, with evidence showing that people in Western countries are sleeping on average only 6.8 hour (hr) per night, 1.5 hr less than a century ago. Previous studies have established that although the effects of sleep deprivation on our organs have been obscure, recent epidemiological studies have revealed relationships between sleep deprivation and hypertension (HT), coronary heart disease (CHD), and diabetes mellitus (DM). Further,Sleep timing is related to several risk factors for angina pectoris (AP), such as obesity and diabetes.
A recent study has highlighted that later bedtimes on both weekdays and weekends were significantly associated with an increased prevalence of angina pectoris. On the contrary, the research team also highlighted that early bedtimes may help people decrease the risk of AP.The findings have been put forth in Sleep Medicine.
The current study was designed to evaluate the relationship between sleep timing and AP, specifically whether later bedtime was associated with AP in middle-aged and older adults.
The study was designed as a community-based study on the Sleep Heart Health Study cohort and included 4710 participants (45.9% men, aged 63.3 ± 11.0 years). Lifestyle and epidemiological information were obtained from baseline records. Self-reported sleep measures provided information on bedtime and wake-up time of weekdays and weekends. Individuals were divided into three categories according to bedtime (≤22:00, 22:01–23:00, and >23:00). Odds ratios (OR) and 95% confidence intervals (CIs) of AP for bedtimes were estimated with multivariate logistic regression analysis.
Data analysis revealed the following facts.
- The prevalence of AP was 44.2% and the distribution of weekday bedtimes ≤22:00, 22:01–23:00, and >23:00 were 36.6%, 47.5% and 46.0%, respectively.
- After adjusting for potential confounders, weekday bedtimes >23:00 (OR 1.34; 95% CI 1.13–1.60; P = 0.001) and 22:01–23:00 (OR 1.54; 95% CI 1.29–1.82; P < 0.001) were significantly associated with an increased risk of AP compared with the reference group (≤22:00).
- In addition, weekend bedtimes >23:00 (OR 1.44; 95% CI 1.20–1.73; P < 0.001) and 22:01–23:00 (OR 1.70; 95% CI 1.40–2.05; P < 0.001) increased the risk of AP.
For the full article follow the link: https://doi.org/10.1016/j.sleep.2020.12.035
Primary source: Sleep Medicine
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