Dear friends:

Welcome to " Metabolism ", the number 10 of FISSAC Magazine. We reach a round figure that, humbly, we believe that it does justice to this special number that we have preparing before the summer. And one of the reasons that make it so special is that we have people we consider from the Fissac family.

To open Boca, we interviewed Aitor Viribay by Glut4 Science that, as the title of the masterful film of the 90s, is already 'one of ours'. In the Aitor interview, he tells us about his research in the field of metabolism and sports nutrition, his new challenges, and many other topics that will surely be of great interest to our readers. In addition, three luxury collaborators accompany him. Dr. Marta Castroviejo explains the concept of relative energy deficiency in sport, its consequences on health and performance, and some ways to treat it. Dr. David Morales returns to Fissac Magazine to introduce us into a widely unknown concept but of great importance for performance such as the functional reserve. For his part, Juan José Martín opens with the first part of a serial on redox homeostasis, his relationship with the exercise of strength and the role played by personalized nutrition in that binomial.

For our part, Pedro reviews what science says regarding the concept of the so -called 'Fofisanos', and raises to what extent this state is healthy. Adri makes us travel to the physiological limits of the human being and enters us in a world still to ignore how the depths of the sea are. Finally, Javi stops in the importance of physical exercise in childhood on a fundamental structure and in full development at this time such as the brain.

And so far this number 10 of Fissac Magazine. We are already working on the next. Meanwhile, we hope you enjoy this one that we have prepared for you so much love. Thank you very much for reading and continuing to make Fissac a place of learning and continuous teachings.