@xiaobin.wu7: Too Much Blue Light? When the Brain’s Clock “Shuts Off” — Why Scrolling Delays Sleep At night, blue light hits retinal ipRGCs, drives signals to the SCN, and suppresses pineal melatonin, delaying circadian phase. Translation: you feel less sleepy, scroll longer, and pay for it the next day with focus and mood swings. Visual science only—not medical advice. Cut screens before bed and keep a steady sleep schedule. #ChildHealth #ParentingTips #3danimation #parenting #HealthTok