Q. Now that I'm in my 50s, I can't seem to lose weight even when I eat less and exercise like I used to. Why is this middle-age spread so stubborn?

I frequently hear patients in my clinic exclaim, "Doctor, it’s so unfair!" Having experienced these bodily changes myself, I truly empathize with that feeling. From a medical perspective, the 50s is a time when sarcopenia (natural muscle loss) accelerates and insulin resistance tends to increase. This lower basal metabolic rate means that even if you maintain your previous diet, your body is now structured to store leftover energy as fat. Traditional Korean Medicine explains this process as a sequence of internal imbalances. It starts with 'Spleen Deficiency' (Biheo), a weakening of the organ system responsible for digestion and nutrient transport. When this 'engine' loses output, body fluids fail to circulate and instead thicken into 'Phlegm-fluid' (Dameum). This is often worsened by 'Blood Stasis' (Eohyeol), where stagnant circulation further slows the metabolism. Ultimately, dieting in your 50s should focus on restoring the body's 'processing power' rather than simple caloric restriction. I’ve learned through my own trials that extreme fasting often does more harm than good at this age. The priority should be tonifying the digestive function and clearing out accumulated waste. The most effective approach is to accurately assess your current metabolic and circulatory state to find a path that works for your changing body.