Irrational as it sounds, a frosted slice on a plate is being treated by bakers and brands as a low‑tech mood device. The so‑called “magic” cake trend leans on a simple claim: eating cake can make people feel happier, and the claim is not entirely marketing smoke.Central is a blunt biological fact: sugar hits fast. A serving of cake raises blood glucose, which in turn modulates insulin and can nudg...More