There is no grass that doesn't grow fat without being grazed at night.,However, martial arts secrets are not necessarily all about fighting and killing techniques. There are also exercises for health preservation that can prolong life and enhance well-being.,Cultivating life-prolonging exercises, not being overly aggressive or fierce, leads to longevity. Many examples can be found of people living to be seventy or eighty years old. The "Wonderful Response Real Person" recorded in books practiced body cultivation and lived over a hundred years.。