How do you know what kind of pillow you're comfortable with?
Modern research suggests that the pillow should be slightly lower than the shoulder to the neck of the same side. The pillow is high according to the physiological curve of human neck 7 cervical alignment and determined, must adapt to the physiological bending to the shoulder and neck muscles in a relaxed state, ligaments and joints, the pillow is too high and too low is not conducive to human health.
The pillow is soft, moderate and slightly elastic. The pillow is too hard, the relative pressure of head and neck and pillow contact increases, causing head discomfort; the pillow is too soft, it is difficult to maintain the normal height of the head and neck is not necessarily support and fatigue; the elasticity of the pillow is too large, then the head by the external elastic effect, easy to produce muscle fatigue and injury.
The pillow should be slightly longer. The length of the pillow should be enough to turn the sleeping position behind. Pillow is not easy to over width, over width is more than the head and neck joints, muscle tension, 15 to 20cm is appropriate.
Physiological: for the supine position, the pillow can maintain cervical curvature radian, pillow edges should be curved, not a slope shaped; the height of the pillow should accord with the person's shoulder width, supine pillow height about a fist, side pillow height should be a fist and two point.
