The urge to have a bowel movement is regular, just like the tides of the sea. Generally speaking, every morning when people wake up, they feel the urge to have a bowel movement, and many of them go to the toilet to have a bowel movement as soon as they wake up. This is the wake up reflex that causes the urge to defecate. In addition, after the morning, food passing from the stomach through the pylorus will reflexively cause the urge to defecate, which is called the gastrocolic reflex. This reflex is not obvious at lunch or dinner. Therefore, most people have a bowel movement after waking up or after breakfast. We can use this reflex, the Tao, to get rid of the stool in one go. Make it a habit to have a bowel movement in the morning.