Getting too much sleep may increase the risk for heart disease in older women, early research suggests.
In a new study, researchers analyzed information from more than 3,000 older women in the United States who wore a fitness tracker-like device called an ActiGraphic, which measures activity as well as sleep, for one week. Participants were 78 years old on average, and represented a racially and ethnically diverse group.
The researchers also calculated each participant’s “Reynolds Risk Score,” a score that estimates a person’s risk of developing cardiovascular disease, or experiencing a complication like a heart attack or stroke, over 10 years.