What is the effect of crossing the valley on health?

Pigu is a way to purify the body by not eating food. The influence of crossing the valley varies from person to person, but generally speaking, crossing the valley may cause some physical problems, such as nutritional deficiency, dizziness, nausea, vomiting, diarrhea and so on. If you want to try to break the grain, please be sure to do it under the guidance of professionals and ensure that your physical condition is suitable for breaking the grain.