The time for Hui people to cross the valley varies from person to person, usually depending on their physical condition and needs. Bigu is a traditional health-preserving method, which can achieve the purpose of conditioning, strengthening the body and preventing diseases by reducing food intake. The time to break the grain is as short as a few days, as long as several months, or even longer.

For Hui people, the time to break through the valley can be decided according to personal needs and physical condition. Generally speaking, the time of breaking the valley can be arranged on weekends or holidays, which can make better use of the time. During the broken valley, the following points should be noted:

1. During the off-season period, the diet should be light and avoid greasy, spicy and irritating food.

2. You can drink water properly during the valley break, but you should control the amount of water to avoid drinking too much.

3. You can exercise properly during the valley, but avoid strenuous exercise.

4. Pay attention to maintain good work and rest habits during the valley break, and avoid bad living habits such as staying up late and being tired.

In short, the time for Hui people to break the valley can be decided according to their personal needs and physical condition, but the following points should be paid attention to:

1. During the off-season period, the diet should be light and avoid greasy, spicy and irritating food.

2. You can drink water properly during the valley break, but you should control the amount of water to avoid drinking too much.

3. You can exercise properly during the valley, but avoid strenuous exercise.

4. Pay attention to maintain good work and rest habits during the valley break, and avoid bad living habits such as staying up late and being tired.

I hope the above information will help to answer your question.