These reasons are sometimes external and purely external; This is, for example, the use of highly moisturizing factors when the body does not need to be hydrated by food and drink. When both of these circumstances arise together and simultaneously, the matter in the body multiplies and the ability of nature to dispose of it is spoiled; This happens if you use the sauna too often, especially after meals. The cause of indigestion can be factors that interfere with the absorption of juices, for example, sedentary life, neglect of exercise and regular bowel movements, refinement in food and drink, and poor diet. Sometimes these reasons reside inside. Such, for example, is the weakness of the digestive force, which therefore does not digest, or the weakness of the expelling force, or the power of the retaining force, as a result of which the juices are retained and are not expelled, or the narrowness of the passages.
It is easy to find out about the causes of constipation and bowel movements by thinking about what we said about retention and bowel movements. Look for them in what is said there.