In this article, I would like to introduce the relationship between sensitivity to caffeine and genetics. Additionally, I’ll recommend some caffeine-free teas for those who are sensitive to caffeine, so please read on until the end. Let’s dive into the main topic right away! What happens when you consume caffeine? Caffeine stimulates the cerebral cortex, … Continue reading Are Japanese people sensitive to caffeine? Exploring the relationship between caffeine and genetics, along with recommendations for caffeine-free teas.