Another day, another TikTok mass diagnosis trend is sounding the alarm on our health. Thousands of videos on the app have users talking about “cortisol face” or “moon face,” characterized by a round, puffy appearance due to excess levels of cortisol, commonly known as the stress hormone. The condition often brings with it inflammation, facial swelling, and bloating. It’s not so much the condition itself that’s causing concern among medical professionals and skeptical users; rather, it’s the perception the trend is creating of it being extremely common and self-treatable that’s unsettling. While many users are claiming stress is causing their puffy facial appearance — after all, who isn’t stressed these…