In this article is revealed the beginnings in the field of understanding of photosynthesis in mammals and therefore, in humans. Indeed, this concept, which seems wrong when joining these two words together and which until recently was attributed to the kingdom of plants, is beginning to be understood in the human organism for the production of ATP at the cellular level. In osteopathy, we always seek to increase mobility in order to optimize the functioning of the body. We will see later how this can be done by addressing body fluids