Abstract
The recent discovery of water channels, the so-called „water-transporting molecules” at the level of biological structures and ultrastructure, opens up new directions in medical rehabilitation research concerning the role of these channels in cell function. There are various number of water channels in the body, wich were analyzed from an ultramolecular point of view and also by their phisiological role. Concerning the brain and the connection with Alzheimer’s disease, the role of these channels are crucial. From the perspective of an ageing society, preventing the Alzheimer’s disease is one of the key points and, for this reason, the water channels, as we call them „aquaporins” have a crucial role.