René Descartes was a French philosopher who attributed that bodily movements and motions were propelled by tiny animal spirits.
Descartes says that these animal spirits travel throughout our bodies in the circulatory system and passes through the brain and heart, where the animal spirits signal the nerves to move our bodies.
According to Descartes, these animal spirits are the finest particles in the blood and through the principle of passion, these participles propels the movements of the spirits and heart.
