The theme is inspired on the fundamental physiological process from the cells to the whole systems functions, which are based on rhythms and cycles. Considering that the Physiological Sciences are handling the process that determine the life, the theme of the 38th IUPS Congress in Brazil will be oriented to the RHYTHMS OF LIFE. This theme also combines with the Brazilian culture and Brazilians’ life style in which the music, sports and a rich natural environment make a perfect scenario for a real experience about THE RHYTHMS OF LIFE.