Night owls take note — there’s a new study that says your way of life isn’t the healthiest.
Sleep deficits and poor-quality sleep have been linked to obesity and a myriad of health problems, but this study by University of Delaware researcher Freda Patterson and collaborators at the University of Pennsylvania, Drexel University and the University of Arizona College of Medicine shows that when it comes to promoting healthy hearts, it’s not a matter of getting more sleep. It’s a matter of getting adequate sleep at optimal times.
Doing that seems to reduce the kind of behaviors – smoking, sedentary lifestyles and poor dietary choices – that put hearts in harm’s way.
“There are some who believe that sleep as a physiological function is upstream to these heart-health behaviors,” said Patterson, assistant professor of behavioral health and nutrition in the University’s College of Health Sciences. “If that is true, the implication would be that if we can modify sleep as a central risk factor, we might be in much better position to leverage or modify some of our most stubborn cardiovascular risk behaviors such as tobacco use.”
The study, published in the Annals of Behavioral Medicine
, examined the duration and approximate timing of sleep to see what patterns might be linked to the three prime suspects of cardiovascular trouble – smoking, poor diet and sedentary habits. Those three behaviors have been blamed for about 40 percent of cardiovascular deaths in the United States and the United Kingdom.
The study had an enormous pool of data with which to work, drawing from the United Kingdom’s Biobank Resource and a sample of 439,933 adults, between the ages of 40-69. Participants in the UK study were asked about their physical activity, how much time they spent using a computer or watching TV on an average day, how many servings of fruits and vegetables they had each day and how many cigarettes they typically smoked in an average day.
What it found was startling. Those who slept too much, too little, or went to bed late were ALL more likely to smoke, remain sedentary and eat fewer fruits and vegetables.
“These data suggest that it’s not just sleep deprivation that relates to cardiovascular risk behaviors, but too much sleep can relate as well,” Patterson said. “Oftentimes, health messages say we need to get more sleep, but this may be too simplistic. Going to bed earlier and getting adequate sleep was associated with better heart health behaviors.”
The American Health Association reports that only 5-10 percent of adults meet ideal standards in diet, physical activity and tobacco use. The rest of us have work to do.
“We know that people who are active tend to have better sleep patterns, and we also know that people who do not get their sleep are less likely to be active,” Patterson said. “A pressing question for practitioners and researchers is how do you leverage one to improve the other?”
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