Q. If I calculate my calories with a workout tracker and eat exactly that amount, shouldn't I lose weight? Why isn't it working for me?

Many people assume that weight loss is a simple matter of mathematical balance, but the reality is often more complex. While modern medicine emphasizes the deficit between basal metabolic rate (BMR) plus active expenditure and caloric intake, 'metabolic efficiency' acts as a critical hidden variable. Some people naturally burn energy rapidly, while others have a physiology that clings to energy stores, making weight loss difficult despite a caloric deficit. In Traditional Korean Medicine (TKM), this condition is viewed as an issue of Qi and Blood circulation. Specifically, when the function of the Spleen is weakened—a state known as Spleen Deficiency (Bi-heo, 脾虛)—the body's ability to convert nutrients into usable energy drops sharply. In this state, even if you reduce caloric intake, the body perceives a lack of energy and paradoxically triggers a mechanism to store fat for survival. Furthermore, if Blood Stasis (Eo-hyeol, 瘀血) or Phlegm-Fluid retention (Dam-eum, 痰飮) has accumulated, the body's internal transport pathways become obstructed. Just as adding more cars to a gridlocked highway doesn't solve the traffic jam, simply adjusting calories won't work if the circulation is blocked. The key is not the number on the scale or the app, but whether your body's 'metabolic switch' is actually turned on. Before pushing yourself to eat less and move more, it is essential to determine if your constitution is prepared to burn energy effectively.