The days we have mentioned are the main days of crisis, but sometimes crises occur quickly or late. The reason for this may be some influence coming from outside or from the disease itself, which moves quickly or slowly, or depending on the strength or weakness of the body, or on certain circumstances, for example, from insomnia due to an effective external cause that does not allow the patient to sleep , or from bodily and mental phenomena, when they are too excessive. Such a crisis does not replace the crisis that had to take place in its time, and is less complete. If a strong cause had not arisen, the crisis would undoubtedly have occurred in due days, neither earlier nor later, but since this circumstance took place and turned out to be strong, the time of the crisis deviated, and it was ahead of its time or late. And if the reason is weak, it only complicates the crisis and does not allow it to be complete.
The days on which this deviation appears are called middays, and in some respects they have the qualities of true crisis days. These are the days; for example, the third, fifth, sixth or, for example, the ninth or thirteenth: the third and fifth days surround the fourth, and the ninth is between the seventh and eleventh. Often one of the two days, standing on either side of the day of the true crisis, is more suitable as a day falling in the middle, or the day of crisis, standing between the true day of the crisis and the day falling in the middle, but on the other side, turns out to be more worthy of it. . The acceleration of the crisis from the eleventh to the ninth day occurs more often than the delay from the seventh to the ninth, although both of these often occur.