Researchers have proposed a new metric that combines heart rate and step count data from smartwatches, suggesting it could be a useful tool for monitoring cardiovascular health. According to a study published in the Journal of the American Heart Association, the daily heart rate per step ratio can provide insight into how efficiently the heart is working. The study found that those with lower ratios were more prone to various diseases, including Type II diabetes, hypertension, and heart failure.
Source: https://www.nytimes.com/2025/03/29/health/heart-health-steps-smartwatch.html