Low blood sugar

Low blood sugar occurs when blood glucose levels drop below the body's energy needs. In response, the body releases cortisol and adrenaline to raise blood sugar through gluconeogenesis and glycogen breakdown. This stress response can cause wakefulness, anxiety, sweating, or a racing heartbeat as the body mobilizes stored energy to restore balance. Frequent blood sugar drops are driven by carbohydrate-based diets, where insulin spikes cause reactive lows. By switching to ketosis, the body maintains stable energy through fat metabolism and gluconeogenesis, keeping blood sugar steady both day and night even after meals.