Episode

15 Dec 2025 · 20 min

0:00

JJ Virgin argues 8-9 hours of sleep is the single most important health intervention. Insufficient sleep raises cortisol, ghrelin, and insulin resistance, driving cravings. She recommends a power-down hour, cool dark bedroom, dinner 3-4 hours before bed, and Epsom salt baths.

Questions this episode answers

Bedtime between 9–11pm and waking between 6–7am (aiming for 8–9 hours).

About 68 degrees Fahrenheit.

Within 30 minutes of getting to bed.

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