Scientific, weighing, measuring, signaling, checking, life-saving and teaching apparatus and instruments, namely, an integrated system comprising mobile application and body sensors for the purpose of providing scientific measurement, monitoring, assessment, and quantification of a person's energy level, health, fitness, body composition, physical activities, nutritional status, workload, training load, physiological remediation and therapies; downloadable software for use in an integrated system comprising mobile application and body sensors for the purpose of providing scientific measurement, monitoring, assessment, and quantification of a person's energy level, health, fitness, body composition, physical activities, nutritional status, workload, training load, physiological remediation, and therapies; Medical services; veterinary services; hygienic and beauty care for human beings or animals; Scientific and technological services, namely, providing scientific measurement, monitoring, assessment, and quantification of a person's energy level, health, fitness, body composition, physical activities, nutritional status, workload, training load, physiological remediation and therapies, using an integrated system comprising mobile application and body sensors; industrial analysis and research services, namely, providing scientific measurement, monitoring, assessment, and quantification of a person's energy level, health, fitness, body composition, physical activities, nutritional status, workload, training load, physiological remediation and therapies, using an integrated system comprising mobile application and body sensors; design and development of computers and software for use in the field of scientific measurement, monitoring, assessment, and quantification of a person's energy level, health, fitness, body composition, physical activities, nutritional status, workload, training load, physiological remediation and therapies, using an integrated system comprising mobile application and body sensors