Sleep & Recovery

This article explains what sleep stage percentages, sleep score, and heart rate variability readings on consumer trackers actually measure and where their accuracy limits lie. Readers learn which metrics are worth tracking over time and which single-night numbers should be ignored.

This explainer compares the documented mechanisms of magnesium and melatonin supplements, clarifying which sleep problems each is intended to address. It also outlines typical dosing ranges cited in product labeling and when neither is an appropriate substitute for medical evaluation.