After water, tea is the most popular drink in the world. We turn to it for comfort, for a break in the day, and increasingly, for its claimed mood‑calming powers. Scroll through social media and you’ll find no shortage of claims that tea, or more so one of its bioactive compounds called L‑theanine, are a natural answer to stress and anxiety. In this podcast episode, I take a closer look at those claims through the lens of a new review that pulled together clinical trials on green tea, its key...