You need to know that all the diseases listed below occur in the head. However, by the word head here we most often mean the brain and its membranes; in this place we do not mean hair diseases. So, we say: in the brain all eight types of disorder of nature occur, simple or occurring in the presence of matter. Matter is either vaporous or has a certain density; Diseases caused by moisture often occur in the brain. Every brain, at the beginning of its creation, has excess moisture, which must be removed either while still in the uterus or after birth; if it is not removed, then this poses a great danger. All diseases of the brain occur either in its substance, or in the vessels, or in the membranes. Combination diseases also occur in the brain, relating either to size, if, for example, it is less than it should or more than it should, or to form, if, for example, the shape of the brain deviates from the natural state and, as a result, its actions are disrupted. Sometimes the ducts and vessels of the brain become blocked, and the blockage can occur either in the anterior ventricle, or in the posterior ventricle, or in both ventricles at once, and it can be incomplete or complete; Blockages also occur in veins or arteries, or in places where nerves grow. Either the ligaments of the membranes are displaced, or parts of the brain are separated.
Diseases of discontinuity also arise in the brain due to the disintegration of the whole within itself, in the arteries, in the membranes or in the skull. There are also tumors in the brain: either in the substance of the brain itself, or in its thin or thick shell, or in the mesh or in the outer shell. All these tumors arise from the matter of one of the hot or cold juices. Cold putrefactive juices form hot tumors, cold immobile juices form tumors, which should be called cold. You will not find a single brain disease that is not related to these diseases or does not arise from them. Brain diseases can be specific, or they can be caused by complicity. Sometimes with diseases of complicity, the danger increases so much that they become purely cerebral and fatal; Thus, in cases of pleurisy and tonsillitis, suffocating, deadly matter rushes into the brain. Often the brain is struck by a fatal attack due to damage to some other involved organ.