When looking at the concept of essence in the Donguibogam through the lens of modern medicine, you can see it is very closely tied to our body's stress response system. Specifically, it relates to the brain's hypothalamic-pituitary-adrenal axis. This hypothalamic-pituitary-adrenal axis plays an essential role in helping our body handle crises by secreting stress hormones like cortisol when under stress. However, when suffering from chronic stress, overwork, and sleep deprivation, this hypothalamic-pituitary-adrenal axis continues to operate excessively, eventually becoming exhausted and losing proper function.
HPA axis dysfunction affects multiple systems in our body like falling dominoes. First, chronic cortisol secretion causes structural and functional changes in the brain's hippocampus, responsible for memory and learning, and amygdala, responsible for emotions. Because of this, memory declines, concentrating becomes difficult, and emotional regulation suffers, making you easily anxious or depressed. It is just like an overloaded brain failing to function properly.
Furthermore, neurotransmitter imbalance is also a serious issue. As crucial neurotransmitters, such as serotonin for feeling happiness, dopamine for motivation and reward, and norepinephrine for raising arousal and concentration, become depleted, symptoms like loss of motivation, lethargy, and diminished pleasure, known as anhedonia, appear. It is as if the factory producing positive energy in the brain has shut down.
Going further, chronic stress induces mitochondrial dysfunction and increases cellular oxidative stress. Mitochondria are the powerhouses of our body, and when they fail to function properly, fatigue does not lift no matter how much you rest, and the entire body cannot produce energy efficiently. Inflammatory responses also become chronic, leading to generalized pain or decreased immunity. In conclusion, burnout should not be understood as a mere problem of getting better with some rest because you are tired; it is a state in which the biochemical and neurological systems of our body and brain are complexly breaking down. Isn't it a truly remarkable and vital realization that the Donguibogam's description of depleted essence can be explained so intricately by modern science? Now is the time to listen to the warning signals your body is sending.
