blue light Bởi Kristin Appelt - Thứ Sáu, 22 tháng 9 2023, 1:35 PM Số lượng các câu trả lời: 0 i heard that blue light that comes from screen time. like phone computers and tvs. emmit blue light. I heard this enterfers with sleep and your brains ability to turn down and rest. its recommened to turn screens off an hour before bed. Permalink Phúc đáp