Kanuda effect verified by clinical experiment

Duhanjokyeol (Cool Head and Warm Feet) :
Keeping head cool and feet warm during sleep, an oriental principle

Suseunghwagang (Cool energy up warm energy down)
Lift cold energy and pull hot energy down for the Yin-Yang harmony, an oriental medicine principle

People who don’t keep these principles wake up in the morning due to cold feet, which leads to the lack of sleep. In particular, in the winter with long night, the lack of sleep affects greatly the fall of physical activities.
Sleep is directly associated with physical condition. So, the continuous lack of sleep will bring chronic fatigue and headache. Even worse, it will bring depression. Therefore, creating sleep environment based on the principle of cool head and warm feet is important. It is produced principally based on the structure of physical skull and flow of cerebrospinal fluid.

Is only low pillow a good pillow? The answer is “No”.
Using no pillow or too low one can cause edema or cervical abnormality. What is most important is that pillows also need to be adjusted to our body shape like the clothes we wear.

The height of pillow for comfortable sleep and healthy neck may need to vary for different shape of head and length of neck. However, generally, the right height for neck is about 6-8cm. This posture is the most comfortable medically. Especially, pillow must support the neck line of the larynx, the border of the head and beck. Kanuda pillows help stable support by a dual-core insert for a long time.

When neck takes the most comfortable position, cervical shows a C-shaped curve. Then, it is the most unburden posture for neck disc or ligaments. In addition, it is desirable to adjust the height in order to keep neck and shoulder horizontally. In other words, pillows need to be put parallel to the back of the head and shoulders. The width of pillow also needs to be larger than that between shoulders. While using a pillow, the height of pillow from neck to the back of the head needs to be adjusted to user’s physical feature. (Depending on user’s weight and shape of the back of the head)