Why You Never Feel Rested & How to Fix It - Dr Jay Wiles (Video)
In this 22 January 2026 published Modern Wisdom video, host Chris Williamson talks with Dr Jay Wiles, a Chief Health & Performance Officer and Heart Rate Variability (HRV) researcher.
HRV is the new health flex, but is it lying to you? Everyone’s comparing HRV scores, but what does HRV really mean for your health? How do you raise it, and should you actually care if yours is lower than your friends’?
Expect to learn what HRV actually measures and what it doesn’t, why everyone suddenly cares about HRV, how fast the vagal system responds to changes in HRV and how it adapts, why resonance breathing is different than slow breathing, what to improve first when optimizing HRV, the big picture takeaway you should look out for, for HRV and more.
https://youtu.be/x1dXuS541wk
Heart Rate Variability (HRV) measures the subtle changes in time between heartbeats, reflecting your autonomic nervous system’s balance between stress (sympathetic) and rest (parasympathetic); higher HRV generally signals better health, resilience, and fitness, indicating good stress management and recovery, while lower HRV suggests your body is under strain from stress, poor sleep, illness, or overtraining, and can be linked to issues like anxiety, heart problems, and diabetes. It’s a key biomarker for overall well-being, helping you gauge readiness for activity or the need for rest.
0:00 Why Should We Be Looking at HRV?
14:54 Why Everyone’s HRV is So Different
19:56 Do Men and Women Have Different HRV?
28:44 Deconstructing State Changes and Trait Changes
38:14 How Fast Your Nervous System Really Reacts
44:16 Can You Train Your Nervous System to Adapt Over Time?
53:08 Does Resonance Breathing Actually Work?
01:10:24 How Ohm is Rethinking Breathwork
01:19:31 Does Feeling Calm Mean You’re Regulated?
01:24:41 How Can We Combat Physiological Stress?
01:41:06 How Do You Know Resonance Breathing is Working?
01:47:15 The Most Effective Ways to Improve Your HRV
01:51:27 How Breath Connects the Nervous System and the Mind
01:56:03 Why Sleep is the Most Important Factor
02:04:32 Are There Limits to How Much You Can Improve HRV?
02:08:12 Where to Find Jay
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