The engine in your chest
The magic on your wrist
Mastering the five zones
The art of recovery
coach Heart Rate Trends
If your HRV is dipping low (take it slow, oh-oh) / When the trend begins to grow (ready to go, yeah!)
coach Even at 60 beats per minute, the time between beats varies from 0.9 to 1.1 seconds, revealing your nervous system adaptability.
coach Wrist wearables track heart rate variability to measure your body's stress and recovery
coach Match workouts to heart rate zones to learn how to train smarter using wrist data.
The space pioneer: Soviet cosmonaut Gherman Titov was the first human to have his heart rate variability recorded in space back in 1961.
The physiological phenomenon of variation in the time interval between consecutive heartbeats. Garmin and Polar wearables track this metric to help athletes monitor their daily physiological rest.
If your heart rate is exactly 60 beats per minute, what is true about the intervals between those beats?
What is the main function of the parasympathetic nervous system regarding your heart?
Which branch of the autonomic nervous system is active during stress, lowering your heart rate variability?
Why did early space scientists rely on heart rate variability instead of traditional medical tests in orbit?
Which space program first used heart rate variability to monitor astronauts' stress levels in orbit?
Why should you track your resting heart rate trends over weeks rather than focusing on a single day's number?