The six-month period following childbirth is scientifically recognized as the optimal time for weight loss. Immediately after delivery, hormonal influences keep the joints and ligaments loose, and the body remains filled with residual fluids and metabolic waste that have yet to be discharged. In Traditional Korean Medicine (TKM), these are referred to as Eohyeol (瘀血, blood stasis) and Dameum (痰飮, phlegm-fluid). When these impurities obstruct circulation, they eventually solidify into a constitution that resists weight loss. To break down the process: the physical exhaustion of childbirth severely depletes Qi and Blood, leading to a state of Biheo (脾虛, Spleen Deficiency). In this state, digestive and metabolic functions drop significantly, creating a vicious cycle where the body swells and accumulates waste. If this condition persists beyond six months, the hypothalamus in the brain may reset your 'set-point,' recognizing the increased weight as your new normal. From that point on, your body will fiercely resist weight loss to maintain that higher weight. Therefore, the solution during this period is not simply to starve yourself. Instead, you must replenish your fundamental energy so that your body has the internal strength to push out waste products. The key is a phased approach—starting with reducing edema (swelling) and gradually improving metabolic efficiency. To make the most of this golden window, focus on creating an environment where your body can recover its natural balance and strength.