In this episode, Matt and Jeff discuss what called Matt to revise his book Heart Rate Variability and what readers can expect in the revised and expanded version.
In this episode, Joshua Marchant joins Matt to discuss his research comparing how resonance frequency, square breathing, and 4-7-8 breathing impact heart rate variability....
We are excited to introduce Dr. Inna Khazan to our audience as part of the Optimal HRV team. Inna is a licensed clinical psychologist...
In this episode, Inna, Dave, and Matt discuss Chapter 6 of the book The Heat(beat) of Business: Positioning Heart Rate Variability as a Competitive...
