Seasonal Depression Explained

If you've never heard of hrv, you're not alone. But by the end of this episode, you'll understand why it's an essential metric for optimizing your health and your performance. So, heart rate variability, or hrv, is the variation in time intervals between heartbeats. Remember, if you have 60 beats a minute, that doesn't mean that your heart beats once every second. It means that it's beat 60 times in a minute. But the variation between those beats could be anywhere from partial second to more than a second to two seconds. So a higher HRV indicates a well functioning, adaptable autonomic nervous system, while a low HRV can be a sign of stress, fatigue, or other health issues.