49 In the United States, a study of 459 postmenopausal women enrolled in the Women’s Health Initiative examined relationships between dietary records and sleep diary and actigraphy variables. 50 This ...

They also kept a sleep diary. At the end of the week, the researchers ran tests to measure blood pressure control, how well their blood vessels functioned, and levels of oxidative stress—all ...

he suggests tracking your sleep for a few weeks using a sleep diary and combining this information with data from a consumer wearable. If it takes you 30 minutes or more to fall asleep or you’re ...