Old mesoderm tissues governed by the cerebellum thicken during attack conflicts to provide additional protection. These are the corium skin tissues including the dermis, the inner membranes such as pleura, pericardium, and peritoneum, and the amniotic sac around your body before you were born. Breast gland tissue and sweat glands are also part of this system.

After conflict resolution, bacteria (and, to a lesser extent, mycobacteria and fungi) break down the excess tissue created during the conflict-active phase.