Natural varieties of pulse

With all the mentioned varieties of pulse, which determine the difference in the sense of increase and decrease, a balanced pulse is natural. The only exception is a strong pulse. It is natural for him to have a pulse that is stronger than normal. If the pulse of some other variety exceeds the normal size for that variety only due to an increase in strength and becomes, for example, larger in size, then this is natural for a strong pulse. And for those varieties that do not allow increase and decrease, the pulse is smooth, orderly, and has a good rhythm.

Some causes of variations in the pulse are general, necessary and essential and determine the character of the pulse; they are called retainers. Other reasons are not related to the nature of the pulse; Among these causes there are inseparably inherent ones, the change of which changes the laws of the pulse. They are called inherent causes, and there are also not necessarily inherent ones, which are called unconditionally changing.

There are three holding reasons. The first is the animal force that moves the pulse, which is in the heart; You already learned about it in the section on animal powers. The second is an instrument, that is, a beating vessel; you already learned about it when organs were mentioned. The third force is the need to reduce heat. This is the force that causes the extinguishing of heat to a certain extent and is limited according to the limit of the heat’s ability to ignite and extinguish and to balance. The effect of these restraining causes changes depending on which causes are combined with them from among the necessarily inherent and unconditionally changing ones.