Improving fitness, and boosting stamina, are two goals that any athlete would like to achieve. By regularly using the tooth protecting Functional Activator for Sports Performance, these goals are entirely possible and feasible. By training your nasal breathing, it is possible to increase your VO2 max and to supply the muscles with oxygen. In this way, the Functional Activator for Sports Performance, which allows the improvement of the respiratory capacity of the user, also facilitates recovery of ones breath. In order to quickly see results, simply place the device in the mouth during exercise.