Hoshi was a citizen of the ancient island nation of Yamatai and a Daughter of the Sun at some point during the Kamakura period (c. 1185-1333 CE). She was chosen by Queen Himiko to be her successor.
Muscle contraction happens only when the energy molecule called adenosine triphosphate (ATP) is present. ATP has three phosphate groups that it can give away, releasing energy each time.
Ribose Primer. When you exercise, some of the ATP that your body uses for energy is lost from your cells and must be replaced. Ribose is the only compound the body uses as a starting point to replace these energy-producing molecules. However, ribose production in the heart and skeletal muscles is a slow process, and cannot always keep up with the loss of energy during ischemia (insufficient blood flow) or strenuous, intensive exercise.