"Pigu" originated from "not eating grains" in Taoist health preservation, and it was a common way of health preservation in ancient times. It originated in the pre-Qin period and was popular in the Tang Dynasty. Also known as "Valley Valley", "Valley Valley Valley", "Valley Valley", "Valley Valley" and "Hugh Valley". The earliest record of Bigu originated from Zhuangzi Xiaoyao Tour: "The mountain shot by the ancients is inhabited by immortals. If the skin is ice and snow, it is like a virgin, not eating grains, sucking wind and drinking dew, traveling around the world by flying dragons ... "As a way to prolong life, it is also recorded in many ancient books.

Traditional ways of breaking grain are mainly divided into two kinds: taking medicine and taking medicine. Persuaded to break the grain mainly through hunger strike and breath adjustment (breathing), but its effectiveness lacks scientific basis at present; Taking medicine to avoid cereal is to adjust the body function by taking other complementary foods (nuts, Chinese herbal medicines, etc.). ) instead of eating the staple food (grain).

Under the guidance of science, it is indeed beneficial to the health of the body, but the efficacy cannot be exaggerated, and the scientific principle needs to be studied.

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