This article is based on the One-Unity Theory (considering surrounding natural environment and human body as one unit) and five elements of the Ying and the Yang perspective to redefine the concept of fatigue. With extensive review of literatures, we conclude the following: (1) Some literature indicates that acupuncture and moxibustion have some applicability in fatigue recovery. (2) The ”Nei-Ging” suggests that fatigue (the state of Ying) is the result of insufficient recovery (incomplete power returning towards Yang). Any intervention that can accelerate this process would have the potential to be ergogenic aids for fatigue recovery.