Yes, although it seems to be a very simple action, when doing this action, the muscles from the head, neck, chest, back, abdomen, buttocks to thighs will stretch nervously, and the calories consumed are still relatively large. Moreover, if you insist on doing it, it will also be of great help to your posture. However, you must never rest standing up. If you persist in standing for so long, you may not be able to persist for the first time until you fail.