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.

Josh is a 1st-year student studying clinical psychology at Brigham Young University. He is interested in combining psychotherapy with biofeedback to improve mental health treatment outcomes. He works under the mentorship of Dr. Patrick Steffen. Josh is also a father of two little boys and loves spending time with his family.

Here is a link to the presentation slides for Josh's thesis, including data and graphs for the data: https://docs.google.com/presentation/d/1djNhRAn7avAgO3ZNwFV3d4VjvZJBOIsJ/edit?usp=sharing&ouid=115393129857853066622&rtpof=true&sd=true