Prone to Sudden Outbursts? Could Hwa-byung Be Setting Fire to Your Heart?

Dear patients, aren't you curious about how the fire described in Donguibogam manifests in modern medicine? Your short temper, or intermittent explosive disorder, is never merely a problem of willpower. It can be the outcome of complex interactions between specific brain regions and neurotransmitters. Think of it as an emotional control switch in your brain that has become overly sensitive, easily flipping on even with minor triggers. The brain regions primarily involved are the amygdala and the prefrontal cortex. The amygdala detects threats and processes primal emotions like fear and anger. In contrast, the prefrontal cortex handles higher-order cognitive functions such as rational judgment, impulse control, and problem-solving. But what happens if the amygdala becomes overactivated due to stress, trauma, or innate factors, while the function of the prefrontal cortex weakens at the same time? It creates a situation where the emotional brakes fail while the accelerator is pressed, causing raw emotion to overpower reason and resulting in an explosive outburst of rage. Furthermore, the balance of neurotransmitters in our brain plays a key role. Serotonin, in particular, is central to regulating mood and impulsivity. Low levels of serotonin are known to potentially increase impulsive behavior and aggression, much like lacking calm waters to soften emotional waves, leading to rough swells. In addition, neurotransmitters such as dopamine and norepinephrine are deeply involved in anger responses; when they are excessively secreted or unbalanced, they can provoke hypersensitivity reactions or aggression. Chronic stress can also push our body into a state of fire. Chronically elevated cortisol, a stress hormone, increases bodily inflammation and affects the function of cerebral neurons, undermining emotional regulation. In addition, the close connection between intestinal and brain health—the gut-brain axis—has gained significant attention recently. Emerging studies suggest that gut dysbiosis influences neurotransmitter production, which in turn can affect emotional regulation. Genetic traits, childhood experiences, and environmental factors can also influence these changes in brain function. Just as Korean medicine describes fire flaring upward, modern medicine explains the overall excited state of the body through sympathetic hyperactivity of the autonomic nervous system, which elevates heart rate and blood pressure and tenses the muscles. Because all these complex factors accumulate to cause outbursts, please remember that your emotions are not simply a matter of determination.