Involving the analysis from nearly half a million British subjects, this new study suggests that healthy sleep reduce the chances of heart failure
A SIGNIFICANT CORRELATION
In recent years, much research has been conducted on the relationship between poor quality sleep and various diseases. Most of these studies have focused on the potential health implications of specific sleep behaviors, such as overall sleep duration or the impact of sleep deprivation.
As part of this new work, presented in the journal Circulation, researchers have specifically studied their relationship with the risk of heart failure.
To do this, the team examined data from 408,802 adult British subjects who had been followed for ten years and gave each of them an overall sleep quality score based on five specific measures: sleep duration, insomnia, snoring, daytime sleepiness, and chronotype (early riser, late sleeper, etc.).
It was found that those with the highest score were 42% less likely to have an episode of heart failure compared to those with the lowest score. This rate of risk reduction was calculated when adjusting for a variety of different factors best-known to influence coronary heart disease, together with genetic variations, diabetes, and hypertension.
Looking at the individual measures individually, the researchers found that early risers and those who reported sleeping between 7 and 8 hours a day had an 8% and 12% lower risk of heart failure, respectively.
The simple absence of sleep disturbances reduced the risk by 17%, while subjects who did not report daytime sleepiness were 34% less likely to have heart failure.
BETTER UNDERSTAND THE INFLUENCE OF SLEEP ON HEALTH
“Sleep habits are interdependent. The human body regulates sleep in a holistic manner in order to maintain an overall consistency in its intensity, quality, and duration,” the authors of the study write. “By jointly evaluating these behaviors, our study echoes the findings of previous research. »
Of course, this new work faces the same limitations as most observational studies. Sleep-related habits and behaviors are self-reported, often leading to recall bias, while no direct causal link can be explicitly established between these types of behaviors and heart failure. However, such results do contribute to our understanding of the influence of sleep on health by highlighting more variables that may affect it.