Unstoppable Food Cravings? Bulimia Nervosa, the Moment Your Stress Explodes into Appetite

Examining the insights of the Donguibogam through modern science shows that bulimia nervosa is not merely a lack of willpower, but a distress signal from the body's complex systems. The brain and gut are connected through the gut-brain axis. Under stress, the brain releases stress hormones such as cortisol, which stimulate appetite and increase cravings for high-calorie, high-fat foods by activating the reward circuit that temporarily buffers stress.

Within the gut lives the gut microbiota, composed of numerous microorganisms. These organisms generate roughly 90% of serotonin and influence leptin and ghrelin, the hormones that regulate appetite and satiety. Chronic stress disrupts the balance of the gut microbiota and increases harmful bacteria, which can hinder serotonin production and lower mood. When mood drops, the brain turns back to food to compensate, while an imbalanced gut fails to signal satiety properly, sustaining the cycle.

Stress also hyperactivates the hypothalamic-pituitary-adrenal axis, maintaining elevated cortisol levels. Cortisol raises blood glucose and promotes insulin resistance, which again leads to cravings for carbohydrates. Binge eating can be an instinctive reaction by the body attempting an urgent, short-term energy supply. During this process, the function of the frontal lobe, which regulates emotion and impulse control, is impaired, reducing restraint and making the cycle difficult to stop.

Bulimia nervosa is a multifaceted physical and emotional response to stress. The impairment of the liver, spleen, and stomach described in the Donguibogam corresponds in modern medicine to disruptions along the gut-brain axis, hormonal imbalance, and altered neurotransmitter activity. Together, these processes generate emotional hunger that leads the body to seek energy through inappropriate means. Your body is responding to sustained stress.