medical signs

  • What’s a Good Resting Heart Rate, Anyway?

    What’s a Good Resting Heart Rate, Anyway?

    The ubiquity of activity trackers means access to health data we previously never thought about, such as the number of steps we take, the hours we sleep, and our real-time heart rate. When it comes to heart rate, you might be wondering what, if anything, your resting heart rate says about your health. Resting heart…


  • What Your ‘Heart Rate Variability’ Says About Your Health

    What Your ‘Heart Rate Variability’ Says About Your Health

    One feature a number of fitness trackers offer is a metric called “heart rate variability,” or HRV, which is the interval of time between each heartbeat. But given that we tend to think of our hearts beating at a steady and predictable pace, the fact that the interval between each beat varies can be a…