"The old distinction of day and night or, "Let"s work until five o"clock and then go have drinks and go to sleep at 10’ is for the 20th Century. The 21st Century is very different," says Lechner. "We live in a culture that is 24/7. Social media is 24/7, communication is 24/7, Amazon Prime is 24/7, everything is 24/7. We don"t have those fixed boundaries."

อ่านต่อเพิ่มเติม โรงเรียนบ้านหนองขนาก

สาระสำคัญ การนอนหลับ