Bigu was called Quegu, Qugu, Juegu, Juegu, Juegu, Juegu and Evergreen in ancient times. That is, you can eat fruits, nutritious plants, tonics and drinking water instead of whole grains. Therefore, health care is not a hunger strike. From ancient times to the present, many celebrities have achieved the goal of keeping fit and prolonging life by crossing the valley.

See how the ancients kept in good health: Su Shi, Bai Juyi and Sean.

Sean, a counselor of the Western Han Dynasty, devoted himself to the valley in his later years;

At the end of the Western Han Dynasty, Sean closed the door and threw himself into the valley.

According to historical records, after Sean moved his capital to Guanzhong, he kept his way, and his door was not old. ?

It is to learn to avoid the valley, and the Tao leads to the integration of intellectual people. Therefore, many scenic spots about Sean have been left behind, such as Zhang Han Liu Hou Temple in Bai Zi, Hanzhong, Shaanxi.

Tang Dynasty poet Bai Juyi? Rest your feet and clear your intestines? ：

Bai Juyi, a great poet in the Tang Dynasty, died at the age of 75. What is the secret of his longevity? Rest your feet and clear your intestines? No, it doesn't matter. One of his friends insisted on crossing the valley, and he agreed very much, and left a poem: The guest is a white fairy, and the square inch is clear and empty. Two wings were metabolized by drugs, and three bodies starved to death and rested in peace. ?

Su Dongpo, a poet in Song Dynasty, went on a diet;

Su Dongpo thinks? Light and tasteful? 、? Is a light and intellectual man suitable? 、? Thin and longevity? .

It has been recorded in "The Theory of Bigu" that when a person falls into a hole and can't get out, the tortoise will rest. Then I stopped being hungry and became strong. Then the pawn went home and didn't eat? .

"Miscellaneous Notes" also records eating sunshine to satisfy hunger.

Principle of nourishing vitality: Under normal circumstances, brain thinking, emotional changes, limb movements, heart beating, water metabolism in the body, digestion of the spleen and stomach, including some small movements such as talking at ordinary times, all these physiological functions need the assistance of kidney yang, and the required heat comes from the transformation of kidney essence.

During the valley, the human body is forbidden to eat any other food except drinking some water.

Because from the outside, the human body must meditate during the day, sleep at night, drink water and pee. The purpose of meditation is to make the brain stop thinking and think nothing, leaving the brain in an empty state. The purpose of this is to stop the brain from consuming energy.

During the valley crossing, you meditate during the day and sleep at night, so your heart beats slowly and kidney essence provides little energy. Water-liquid metabolism needs a small amount of yang to maintain normal physiological functions.

After adjusting the frequency and thoughts in the process of crossing the valley, the brain constantly absorbs the energy of the high-latitude universe, which is what Taoism calls congenital one, and this energy is the direct basis of congenital? Kidney, so modern science has done scientific research on how meditation regulates endocrine system and adrenal gland, which is actually what Chinese medicine says. Nourishing essence and invigorating qi? .

If the process of grain deprivation is combined with gas refining, this energy can be continuously purified, transformed and sublimated into the energy needed to improve the function of human viscera, so the principle of comprehensively improving the function of five zang-fu organs after seven days of grain deprivation is here. Of course, the strength of nourishing brain, qi and spirit is higher, which can transform the energy of kidney essence into upper abdomen, replenish brain marrow, link high-dimensional space, open human potential and develop wisdom.