Sleep, stress, and blood sugar
A single 5-hour night raises next-day insulin resistance by 25-30%. Chronic stress keeps cortisol high. The two drivers most plans skip.
You can eat perfectly and exercise daily, and still see your blood sugar rise — if you sleep 5 hours and live in chronic stress.
Sleep
A single night of 5 hours of sleep raises next-day insulin resistance by 25-30%. Target 7-8 hours with consistent bedtime within 30 minutes daily.
Stress
Cortisol — the long-term stress hormone — tells the liver to release stored glucose. That's why high-stress weeks come with high fasting numbers. What lowers cortisol: daily outdoor walking, 4-7-8 breathing, pranayama, screen breaks, social connection.