There are two major aspects focused in the present work. The first one concerns the tryptophan: a cerebral serotonin precursor aminoacid that alters serotonin and its relation to the offer of nutrients (carbohydrates, proteins and aminoacids). As an essential aminoacid it can be modulated through diet, having its physiological and behavioral effects changed, as it can be learned in the present study. The second aspect is related to the precocious fatigue during sports and activities of short and long duration […]