The 'yo-yo effect' is a very common pattern. From a Traditional Korean Medicine (TKM) perspective, weight regain typically follows two primary pathways depending on the previous method of weight loss. First, for those who relied solely on dietary restriction: reducing caloric intake leads to initial weight loss, but if the Spleen and Stomach (Bi-wi)—the organs responsible for digestion and absorption—are not strengthened, the basal metabolic rate drops. In a state of Spleen Deficiency (Bi-heo), the body cannot efficiently convert nutrients into energy, causing weight to accumulate as fat as soon as eating habits return to normal. Supplementing the Spleen and Stomach functions with herbal medicine can raise the basal metabolic rate and make weight maintenance more sustainable. Second, for those rebounding after pharmaceutical interventions: drugs like Wegovy or Saxenda suppress appetite or block fat absorption. Once usage stops, weight often returns rapidly because the body may be left with residual internal heat (Yeol) or accumulated organ fatigue and blood stasis (Eo-hyeol). In these cases, it is necessary to implement 'Clear Heat and Drain Fire' (Cheong-yeol Sa-hwa) therapy and focus on organ recovery to stabilize the weight. TKM does not simply treat weight as a number; we analyze the patient's constitution (Sasang) and current symptoms. We prescribe formulas to regulate the Spleen and Stomach for those with weak digestion, clear heat for those with a heat-prone constitution, or warm the Kidney Yang (Sin-yang) for those with a low metabolic rate. A realistic approach involves consistently taking tailored herbal medicine for about three months while gradually correcting lifestyle habits. Even for busy professionals, a combination of herbal prescriptions and habit modification can yield significant results. I recommend visiting the clinic for a personalized consultation to find the approach that fits your specific body type.