在日常生活中，“高枕无忧”多被理解为垫高了枕头睡觉，无忧无虑，对健康有益。其实这是一种误解。从人的颈部生理特点和卫生保健来说，高枕未必无忧。因为人颈椎的正常姿势，正面和脊梁骨连成一条直线，从侧面看则有个轻微的弯曲、凸面朝前。这是正常的生理曲线。如果平卧时 In everyday life, “sit back and relax” and more are understood as pillow up pillow, carefree, good for health. This is actually a kind of misunderstanding. From the neck of the human physiological characteristics and health care, high pillow may not worry. Because of the normal posture of the human cervical spine, the front and the backbone of the spine form a straight line, with a slight curve when viewed from the side with the convex front facing. This is a normal physiological curve. If supine