Did you know that the worsening of dysmenorrhea caused by a glass of cold water is not just psychological, but the result of complex physiological reactions within our body? Modern medicine explains the wisdom found in Donguibogam through various perspectives, including neurology, endocrinology, and hemodynamics.
First, when cold water enters the body, our autonomic nervous system reacts immediately to maintain core body temperature. Specifically, as the sympathetic nervous system is activated, vasoconstriction occurs, reducing blood circulation around the digestive system and reproductive organs. When blood vessels around the uterus constrict, the supply of oxygen and nutrients to the uterus decreases, triggering hypoxia in the myometrium that can worsen muscle spasms and pain, much like how muscle cramps occur after exercise when oxygen is depleted.
Additionally, one of the primary causes of dysmenorrhea is a substance called prostaglandin, which contracts the myometrium and stimulates pain nerves. When blood circulation is impaired, prostaglandin cannot be eliminated in a timely manner and accumulates in the uterus, potentially amplifying the pain. Drinking cold water worsens this reduced blood flow, contributing to higher concentrations of prostaglandin and lowering the pain threshold.
Its impact on the gastrointestinal tract cannot be overlooked either. Cold water temporarily reduces intestinal motility and can hinder blood circulation in the stomach wall. This suppresses the secretion of digestive enzymes, causes indigestion, and affects intestinal peristalsis. Discomfort in the gastrointestinal tract increases overall abdominal tension, which also affects the adjacent uterus and can heighten sensitivity to dysmenorrhea. According to the gut-brain axis, the state of the gut is closely connected to the brain through neurology, meaning gastrointestinal discomfort can amplify pain perception.
Furthermore, emerging studies suggest that continuous exposure to cold qi may be associated with a chronic inflammatory response. The body consumes more energy to combat external cold qi, which can lower overall immunity and resilience. Menstruation is already a period when a woman's body expends substantial energy and immunity is somewhat lowered, so consuming cold food places an even heavier burden on the body.
In conclusion, although drinking a glass of cold water may seem like a simple habit, it can trigger a complex chain reaction involving vasoconstriction, prostaglandin imbalance, gastrointestinal hypofunction, and increased pain sensitivity, becoming a primary driver that exacerbates dysmenorrhea. A small habit of treating your body with care can significantly ease your monthly discomfort.
