This "educational video" about the Squatty Potty, which is basically a step stool (ha!) that corrects your toilet posture (tagline: "Healthy colon. Happy life"), feels more like an expertly done PowerPoint than a real ad. It's also full of correlation/causation fallacies, but there's a whole team of scientists at Stanford who study this sort of thing, and apparently they signed off on it. That's great, and I'm glad someone is interested in the long-term health of my colon.