Mental Performance · June 26, 2026 · 6 min

What your HRV is actually telling you the night before competition.

The number on your wearable isn't reading your readiness. It's reading your unprocessed load. The fix isn't more recovery, it's letting the signal land.

My HRV tanks the night before every game. I sleep. I hydrate. I do the protocols. The number still drops. I'm starting to think the number is the problem.

Client, in their own words

You did the cold plunge. You did the breathing app. You slept eight hours. The wearable still shows a 32 the morning of the game. You stare at it and feel the part of you that has been training all season collapse a little. The number is not lying. It is reading something you have been working very hard not to feel.

Readiness is not the same as suppression.

Most pre-competition protocols teach the athlete to push the activation down. Breathe slower. Stay calm. Trust the work. The wearable doesn't care about the breathing. It reads the underlying autonomic load, the load you spent the last seventy-two hours layering protocols on top of instead of letting through.

Suppressed activation is still activation. It just gets quieter on the surface and louder in the background. HRV reads the background.

The score didn't drop because you weren't ready. It dropped because the system was carrying everything you didn't let move.

Where The NeuroSomatic Approach changes the read.

GROUND, the G layer, is designed for exactly this. Not to calm you down. To let the activation move through the system instead of pooling under it. Most athletes feel the shift inside one session: the breath drops, the jaw releases, the score the next morning is meaningfully higher. Not because you relaxed harder. Because the load finally had somewhere to go.

What you'll get from this post
  • A clean read of why your HRV keeps tanking the night before, the wearable isn't broken.
  • The difference between suppression and discharge, and why one ruins your score.
  • A first move to try the night before your next event.
Why it works, the methodology
  • HRV is a downstream measure of vagal tone, which reflects accumulated autonomic load, not effort to be calm.
  • Breakthrough Breathwork®: The NeuroSomatic Approach moves charge through, instead of layering regulation on top of it.
  • GROUND's G layer specifically discharges held activation before it expresses as the next-morning number.
For those into the science
  • HRV reflects parasympathetic tone via vagal modulation of the sinoatrial node (Porges, polyvagal model).[1][2][3][4]
  • Slow, extended-exhale breathing reliably increases HRV in healthy adults (Zaccaro et al. 2018; Ma et al. 2017).[1][2][3][4]
  • Brief structured respiration outperforms equal-time mindfulness for autonomic shift (Balban/Huberman 2023).[1][2][3][4]

Numbers jump to the cited source ↓

Try this week
0/4 complete

Saved on this device. Come back any time to pick up where you left off.

References & further reading

Peer-reviewed papers and field-defining books that underpin the methodology referenced above.

  1. Porges, S. W. (2011). The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation. W. W. Norton.
  2. Zaccaro, A., Piarulli, A., Laurino, M., Garbella, E., Menicucci, D., Neri, B., & Gemignani, A. (2018). How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353. doi.org/10.3389/fnhum.2018.00353
  3. Balban, M. Y., Neri, E., Kogon, M. M., Weed, L., Nouriani, B., Jo, B., Holl, G., Zeitzer, J. M., Spiegel, D., & Huberman, A. D. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. doi.org/10.1016/j.xcrm.2022.100895
  4. Ma, X., Yue, Z.-Q., Gong, Z.-Q., Zhang, H., Duan, N.-Y., Shi, Y.-T., Wei, G.-X., & Li, Y.-F. (2017). The effect of diaphragmatic breathing on attention, negative affect and stress in healthy adults. Frontiers in Psychology, 8, 874. doi.org/10.3389/fpsyg.2017.00874
Letters from Noura

Occasional. Never noisy. Unsubscribe any time.