The Skinny; See why poor sleep may increase heart risk in women

Previous studies have shown that people who get less sleep are more likely to develop obesity, type 2 diabetes, and heart disease — and that the relationship may be partially explained by diet. But these studies were narrowly focused on specific foods or nutrients (such as fish, sweets, or saturated fat) or only measured sleep duration, not sleep quality.The new study was designed to get a more comprehensive picture in women by examining associations between overall diet quality and multiple aspects of sleep quality.”Women are particularly prone to sleep disturbances across the life span, because they often shoulder the responsibilities of caring for children and family and, later, because of menopausal hormones,” says Brooke Aggarwal, EdD, assistant professor of medical sciences at Columbia University Vagelos College of Physicians and Surgeons and senior author of the study.The study of nearly 500 women was published online today in the Journal of the American Heart Association.The researchers analyzed the sleep and eating habits of an ethnically diverse group of 495 women, ages 20 to 76. The study looked at sleep quality, the time it took to fall asleep, and insomnia. The women also reported on the types and amounts of foods they typically eat throughout the year, allowing researchers to measure their typical dietary patterns

Similar to previous studies of sleep and diet, the study found that those with worse overall sleep quality consumed more of the added sugars associated with obesity and diabetes.

Women who took longer to fall asleep had higher caloric intake and ate more food by weight.

And women with more severe insomnia symptoms consumed more food by weight and fewer unsaturated fats than women with milder insomnia.

“Our interpretation is that women with poor-quality sleep could be overeating during subsequent meals and making more unhealthy food choices,” says Aggarwal.

The question remains: How might poor sleep contribute to poor eating?

“Poor sleep quality may lead to excessive food and calorie intake by stimulating hunger signals or suppressing signals of fullness,” says Faris Zuraikat, PhD, postdoctoral fellow at Columbia University Vagelos College of Physicians and Surgeons and lead author of the study. “Fullness is largely affected by the weight or volume of food consumed, and it could be that women with insomnia consume a greater amount of food in an effort to feel full.

“However, it’s also possible that poor diet has a negative impact on women’s sleep quality,” adds Zuraikat. “Eating more could also cause gastrointestinal discomfort, for instance, making it harder to fall asleep or remain asleep.”

“Given that poor diet and overeating may lead to obesity — a well-established risk factor for heart disease — future studies should test whether therapies that improve sleep quality can promote cardiometabolic health in women,” says Aggarwal.

Source: Columbia University Irving Medical Center

30 thoughts on “The Skinny; See why poor sleep may increase heart risk in women

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