I've been there too—succeeding with a diet only to regain the weight, feeling dizzy and frustrated. Recurring yo-yo effects aren't simply a matter of willpower; they signal that your body has been trained toward energy storage. In Traditional Korean Medicine, obesity causes are broadly divided into three patterns. First is Spleen Deficiency (脾虛): when the spleen's function weakens, it cannot properly digest and absorb food, leading to Qi deficiency. The body then slows metabolism to conserve energy, storing the rest as fat. You can check for this if you always feel bloated after meals or have loose stools. Second is Phlegm-Fluid (痰飮): essentially, residual moisture and fat components mix into lumps in the body. Signs include bad breath, frequent phlegm, and a white coated tongue. This pattern makes fat hard to lose and easy to gain. Third is Blood Stasis (瘀血): poor blood circulation prevents waste removal. If you often swell, bruise easily, or have severe menstrual cramps, blood stasis may be the root cause. These patterns often appear combined. Try checking each item; if two or more apply, I recommend visiting a Korean medicine clinic for more accurate diagnosis through pulse and tongue examination. After some trial and error, I've learned that blindly fasting or relying on medication without knowing the cause makes yo-yo effects hard to avoid.