GiveAway || Freebie || Closing Sunday – HRV4Biofeedback

Giveaway || Freebie || Closing Sunday - Hrv4biofeedbackGive Away: Closing Midnight Sunday (BST) – HRV4Biofeedback

I’m looking at HRV4Biofeedback right now and have a spare iOS code to give away.

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What is HRV4 Biofeedback?

Details here: HRV4Biofeedback

My Usage

I’m using it for the next few weeks to see if some mindfulness minutes of breathing each day at my resonant breathing frequency can improve my HRV

What I’ve done so far: completed the test which has already determined my resonant breathing frequency which is the resting breaths per minute that maximises my HRV. Normally it’s about 6 per minute and mine came out as 5.5.

Resonant breathing should act as a positive stressor on HRV ie low HRV can be improved, at least acutely, with deep breathing (and any dose might do it). Learn more from the sciencey stuff, here

 

Last Updated on 25 January 2026 by the5krunner


Small things I always use

Watches and sensors

On the bike

Home and indoor training

  • NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
  • Google Wifi: Keeps Zwift connected in my pain cave. I use it.
  • Apple TV 4K: Zwift on the big screen. I use two.
  • Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.

Health, recovery and sleep



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