You just yawned reading this — and that's the whole point. Here's why yawns spread, and what your brain is really doing. 🥱 Yawning clusters at transitions like waking and winding down, and it spreads from person to person — even to dogs. Scientists think brain cooling and social bonding may explain it. This video was created with AI-generated visuals and voiceover. #sciencefacts #humanbody #didyouknow #psychologyfacts #learnontiktok #stickman #mindblown #brainfacts
