Let's consider the inexhaustible energy and stamina of a marathon runner running a 42.195-km course, or the explosive power of a sprinter running a 100-m dash in ten seconds. Where do the abilities of these athletes come from? At the Sports Photonics Laboratory, the kinetic and physiological functions of these athletes are being measured, analyzed and evaluated from new standpoints, based on optical measurement technology cultivated by Hamamatsu Photonics over many years. This data is then put to work in training, with the aim of contributing to improving the records and performance of the athletes. Japan is said to have the longest lifespan of any country in the world, but we're also dealing with the serious problems that accompany an aging society, among them dementia and bedridden patients. Being healthy is important to living a long life with meaning and significance. New knowledge that comes from pursuing true health gives rise to new technologies and new fields of industry, and those in turn give rise to new　way of living, thus significantly contributing to maintaining and promoting quality of life. The Sports Photonics Laboratory is using opto-technology to seek out knowledge pertaining to health.