A Closer Look at Fatigue

Fatigue has long been overlooked by medical science and its scientific mechanism is largely unknown. Research is being held to find a way to quantify and objectively diagnose fatigue, and more is being revealed about fatigue's surprising effect on the brain. Death by overworking is a serious social issue in Japan, but research on substances to aid in fatigue recovery is underway. So what is fatigue? We visited the frontlines of research to learn more about it.