Why and HOW Stress and Sleep Deprivation Make Diabetes Worse (Doctor Explains)

Dr. Kulmeet Kundlas explains why blood sugar can be high in the morning even after fasting, emphasizing that sleep and stress management contribute about 20% to diabetes control and complication prevention. He describes how modern psychological stress triggers the HPA axis, raising cortisol, catecholamines, glucagon, and inflammatory cytokines that increase liver glucose output and drive insulin resistance, with synergistic effects when multiple hormones rise together. He details how chronic sleep deprivation (less than about 7 hours 18 minutes) increases glucose intolerance and insulin resistance, alters hunger and satiety hormones, and increases cravings for simple carbohydrates, especially in shift workers. He distinguishes the dawn phenomenon (circadian cortisol rise) from the Somogyi effect (nighttime lows followed by rebound highs) and suggests using CGM time-in-range to differentiate. Action steps include strategic post-meal walking, mindful breathing/meditation, nutrition sequencing (fiber and protein first), and sleep hygiene with a 7-2-1 routine.