In terms of "fitness", in fact, all "fitness methods" have one thing in common, which is "tightening muscles."
The only difference lies in "how to tighten" and "whether to bear weight". When we "stretch" or "tighten" the "muscles", the "muscle cells" will "congest, swell" and "grow", while the "fat" will begin to "consume", and the areas where Qi and blood are blocked will begin to unblock. Etc. (This is the basis for all fitness exercises to keep fit).
The simplified way of fitness is to directly "tighten the muscles" to "congest" them.
