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What is heart rate variability (HRV)?

Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...
Monthly Prescribing Reference

Automated Variation Measure Indicates Risk of Breast Cancer

(HealthDay News) – A variation measure, estimated from an automated algorithm of the grayscale variation within a mammogram, correlates with the risk of breast cancer as strongly or more so than ...
JSTOR Daily

Contrasting effects of plant inter- and intraspecific variation on community-level trait measures along an environmental gradient

1. Despite widespread focus on interspecific variation in trait-based ecology, there is growing evidence that intraspecific trait variability can play a fundamental role in plant community responses ...
Business Insider

What is heart rate variability? How to measure HRV and what it means

Heart rate variability offers a closer look at how your heart behaves from one beat to the next. While heart rate measures the average number of beats per minute, heart rate variability bases a ...