Topic
HRV
Heart rate variability, autonomic balance, and recovery monitoring.
Why Your Dim Nightlight Is Wrecking Tomorrow's Glucose Response
We usually think of light timing purely in terms of melatonin suppression and sleep architecture. But recent data shows a much more direct, mechanical link to autonomic tone and metabolic function. A fascinating study…
The Metabolic Cost of Ambient Light During Sleep
We obsess over blue light blockers before bed, knowing that evening room light suppresses melatonin onset and shifts our circadian phase . But we rarely talk about the ambient light leaking into our bedrooms while we…