An Unwelcome Guest for Climacteric Women: Solutions for Night Sweats, Hot Flashes, and Cold Sweats

Modern medicine identifies hormones as the main cause of climacteric hyperhidrosis and hot flashes. As estrogen decreases, the hypothalamus in the brain becomes confused. The hypothalamus acts like our body's precise thermostat, maintaining a steady body temperature and regulating sweat gland activity. When estrogen levels fluctuate, the hypothalamus mistakenly perceives the body as overheated. Even with a slight rise in body temperature, the hypothalamus misjudges that the body must be cooled immediately, dilating blood vessels and stimulating sweat glands to release sweat. This is the hot flash that leads to sudden facial flushing and cold sweats. In this process, the sympathetic nervous system becomes overly active, which can also trigger palpitations and anxiety. Furthermore, at night, when the parasympathetic nerve should take over to naturally lower body temperature, the hypothalamic misregulation caused by estrogen deficiency disrupts this nighttime thermoregulation rhythm. Consequently, more cold sweats occur during sleep, and waking because of sweat repeats a cycle that reduces sleep quality. It helps to understand that this is not merely feeling warm, but a physical symptom caused by delicate hormonal balance and subtle changes in brain function. Rather than simply enduring or hiding this discomfort, it helps to see it as a signal for care from your body.