The best time to have a bowel movement varies from person to person, as long as you can get rid of the residue and waste out of your body, combined with your rest and work time is the best. Usually it is considered more convenient in the early morning or before going to bed, because in the early morning after waking up after a night of food digestion, food residues have accumulated in the colon and will be stored in the sigmoid colon in the form of feces, plus the time of the gastrocolonic reflex also occurs in the early morning, so using this reflex, most people will have a habit of defecation in the early morning, so it is also one of the best times. In addition, before going to bed is also very convenient, because before going to bed people have to be at rest, time is very abundant, will not be too tight because of defecation time and thought pressure, and if stool in the body for too long is also unhealthy, so most people will choose in the early morning or before going to bed, many people will also be after Chinese food or dinner is possible. In fact, the best time to have a bowel movement varies from person to person, as long as we have good bowel habits.