Ever wonder why a glass of wine suddenly leaves you with a headache, flushing, or congestion? While sulfites often take the blame, they are rarely the true culprit. Roughly 10% of the population experiences wine sensitivities, ranging from rare grape allergies to common intolerances like histamines, tannins, and congeners. Dive into the science behind how wine interacts with your body, why sensitivities can develop as we age, and how to choose the right bottles to keep enjoying your favorite pours comfortably.