Q. Even though I diet, I keep getting the yo-yo effect. I'm curious about how to prevent it.

Patients who repeatedly experience the yo-yo effect commonly follow a pattern of 'rapid weight loss → metabolic slowdown → regaining even more weight when returning to normal eating.' In Traditional Korean Medicine, this process is explained through the concepts of Spleen Qi Deficiency (biheo) and Phlegm-Fluid (dameum). The spleen (bijeang) extracts vital energy and nutrients from food and distributes them throughout the body. When the spleen becomes weak due to excessive dieting or irregular eating, fluid metabolism is obstructed, giving rise to Phlegm-Fluid, which in turn causes fat accumulation and circulatory disturbances. If stress is added, Liver Qi Stagnation (gan-gi-ulgyeol) further blocks the flow of Qi and blood, solidifying the yo-yo effect. Treatment directions are broadly divided into three categories. First, when Spleen Qi Deficiency is predominant—patients with poor digestion, bloating, and intolerance to cold foods—the focus is on warming and reinforcing the spleen. Second, when Phlegm-Fluid and Blood Stasis (eohyeol) are mixed—those with a heavy body, facial or limb edema, and loose stools—herbs that dissolve Phlegm-Fluid and improve circulation are used. Third, when Depression pattern (uljeung) accompanies stress or menopausal hormonal changes—the priority is to soothe the liver and calm the mind. The important thing is not 'how much weight you lose' but 'helping the body find its own balance.' Combining herbal medicine, acupuncture, and lifestyle management (sleep schedule, meal rhythms, stress coping methods) is essential to prevent recurrence.