hi there 👋
I hope everything is well.
I have received the question above via our HRV4Training customer channel, and found it quite an interesting one to address here in my new series of Q&A blogs on Substack.
In particular, the question refers to temperature regulation during the night. Here is the full question:
I recently picked up a more powerful ChiliPad (the dock pro) and I've been amazed at how much better my HRV is as a result.
I'm curious: given that my overnight physiology is better (as a result of improved sleep hygiene) does this mean I'm actually better recovered each day?
In other words, if we hold subjective assessment constant but the objective data improves as a result of better temperature regulation, what implications does this have on our actual physiology?
Keep reading here, to learn more.
Ambassador Program 2025
Applications to become HRV4Training ambassadors for next year are still open. You can learn more and apply, here.
Training and race report
Below is the training and race report of my recent 50 km personal best in Winschoten, covering a bit of everything from HRV data to lactate, training periodization, cross-training, tracking progress using HRV4Training Pro, and pacing.
I hope you’ll find some useful pointers in there.
Discount for Pro: 20% off 🖥️
HRV4Training Pro is the ultimate platform to help you analyze and interpret your physiological data, for individuals and teams.
You can find a guide here.
Try HRV4Training Pro for free at HRVTraining.web.app or use promo code SCIENCE for 20% off.
In the app, Pro brings the normal values view, which can help contextualizing longer-term changes, as well as rMSSD on the homepage, see an example below:
See you next week!
Marco holds a PhD cum laude in applied machine learning, a M.Sc. cum laude in computer science engineering, and a M.Sc. cum laude in human movement sciences and high-performance coaching.
He has published more than 50 papers and patents at the intersection between physiology, health, technology, and human performance.
He is co-founder of HRV4Training, advisor at Oura, guest lecturer at VU Amsterdam, and editor for IEEE Pervasive Computing Magazine. He loves running.
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