Given rapid advancements in medical science, it is often challenging for the busy clinician to remain up-to-date on the fundamental and multifaceted aspects of preventive cardiology and maintain awareness of the latest guidelines applicable to cardiovascular disease (CVD) risk factors. The “American Society for Preventive Cardiology (ASPC) Top Ten CVD Risk Factors 2021 Update” is a summary document (updated yearly) regarding CVD risk factors. This “ASPC Top Ten CVD Risk Factors 2021 Update” summary document reflects the perspective of the section authors regarding ten things to know about ten sentinel CVD risk factors. It also includes quick access to sentinel references (applicable guidelines and select reviews) for each CVD risk factor section. The ten CVD risk factors include unhealthful nutrition, physical inactivity, dyslipidemia, hyperglycemia, high blood pressure, obesity, considerations of select populations (older age, race/ethnicity, and sex differences), thrombosis/smoking, kidney dysfunction and genetics/familial hypercholesterolemia. For the individual patient, other CVD risk factors may be relevant, beyond the CVD risk factors discussed here. However, it is the intent of the “ASPC Top Ten CVD Risk Factors 2021 Update” to provide a succinct overview of things to know about ten common CVD risk factors applicable to preventive cardiology.

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Introduction Sleep, sedentary behavior, and physical activity are each independently associated with cardiovascular health (CVH). It is unknown how substituting time in sedentary behavior with sleep or physical activity affects overall CVH. Methods Data for this analysis were taken from the Multi-Ethnic Study on Atherosclerosis Sleep Ancillary Study. Eligible participants (N = 1718) wore Actiwatch accelerometers for 24 h and had at least 3 d of valid accelerometry. The American Heart Association’s Life’s Simple 7 was used to represent the CVH score after excluding the physical activity component, with higher scores indicating more favorable CVH. Isotemporal substitution modeling was conducted to examine the effect of substituting 30 min of sedentary time for an equivalent amount of sleep, light-intensity physical activity (LIPA), or moderate to vigorous physical activity (MVPA). Results Substituting 30 min of sedentary time to sleep, LIPA, and MVPA was associated with a significantly higher CVH score [β (95% confidence interval) = 0.077 (0.056), 0.039 (0.033), and 0.485 (0.127), respectively]. Substituting 30 min of sedentary time to sleep was associated with lower body mass index (BMI). Substituting 30 min of sedentary time to LIPA was associated with higher diastolic blood pressure and total cholesterol, and lower BMI. Substituting 30 min of sedentary time to MVPA was associated with lower systolic and diastolic blood pressure, and lower BMI. Conclusions Sleep, LIPA, and MVPA are all associated with more favorable overall CVH and several key risk factors for cardiovascular disease. These findings underscore the importance of lifestyle modifications in improving CVH.

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