How to interpret your HRV at rest stats

First, determine your baseline level by measuring your HRV at rest for 4-6 weeks. Measure it the same way every day, preferably first thing in the morning because that's the most stable part of your day.

After this, compare your HRV to your rolling average and to the same day in the previous weeks:

• If it drops too much, you're in fight-or-flight mode likely due to a lot of stress
• If it rises too much, you're in rest-and-digest mode, but you're experiencing too much recovery due to accumulated stress, overtraining or sickness

Either way, if your HRV is outside your baseline levels, you should rest.