Why Poor Sleep Makes Your Face Puffy: The Functional Medicine Explanation
Matt le Roux Matt le Roux

Why Poor Sleep Makes Your Face Puffy: The Functional Medicine Explanation

Waking up puffy after a bad night's sleep is not just a cosmetic inconvenience. Dr Matt le Roux at Wave Functional Health explains what is actually happening inside your body — from cortisol-driven fluid retention and lymphatic stagnation to neuroinflammation and aldosterone dysregulation — and what your face is really trying to tell you.

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Heart Rate Variability (HRV): What It Is, Why It Matters & How to Improve It
Nervous System and Brain Health Matt le Roux Nervous System and Brain Health Matt le Roux

Heart Rate Variability (HRV): What It Is, Why It Matters & How to Improve It

Heart rate variability is one of the most powerful and underused markers of health available. It tells us not how fit you are, but how ready your nervous system is to handle stress, recover from load, and regulate itself. This post breaks down what HRV actually measures, why it matters in a functional medicine context, and the practical strategies that consistently improve it over time.

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