Experts say that what is eaten into the body is generally discharged after 12 hours, and it is most appropriate to have a bowel movement in the morning and after eating something. The most suitable time of the day to defecate should be early in the morning, just after waking up because after a night of digestion, food residues have been produced, the formation of feces has been stored in the sigmoid colon. The sigmoid colon contains feces, which can be stored in the rectum, and when it accumulates in sufficient quantity (about 300 grams), it will cause a certain pressure on the intestinal wall and cause a defecation reflex. If it is not expelled in the morning, toxins will be produced, and the longer it takes, the more toxins will be produced. It is best to have a bowel movement before going to bed at night, because the accumulation of feces in the body is very bad for the body, bad breath, menstrual disorders, premature aging, poor gastrointestinal, etc. People defecate before sleep, must be slowly force, too hard will cause varicocele, hernia, etc., emptying the body of dirt, is very good for the body. The most important point is to form a habit, with a stable biological clock is good for the body. How many times a day is the best time to have a bowel movement? The normal frequency of bowel movements is once a day, and should be timed to avoid irregularities that cause dysfunction (such as constipation, hemorrhoids, etc.), preferably in the morning – because people produce the most waste at night. 3-5 days to go to a stool belongs to constipation, and that is the discharge of the stool. What is the best time to have a bowel movement? The best time to defecate is 3-5 minutes, because the blood circulation near the anus is accelerated when defecating, too long will make the blood stagnate in the place, and this is the fatal cause of hemorrhoids. So when defecating, you can’t have distractions or engage in other activities such as reading the newspaper, because this will inhibit the defecation center and disperse the blood flow it needs, thus greatly extending the defecation time. 5 factors affecting defecation 1, the amount of feces into the rectum is too small, the pressure on the rectal wall is insufficient, resulting in the rectal wall receptors do not produce impulses, and thus no defecation reflex. This situation is mostly seen in those who eat too little and eat too fine. 2.The rectum loses its normal sensitivity to the pressure stimulus in the intestinal cavity and cannot produce impulses. This condition is seen in those who do not defecate in time for a long time, often enemas or laxative abuse. 3, nerve or spinal cord damage, such as multiple radiculitis, paraplegia and other diseases, so that the nerves that conduct impulses are damaged, can not produce defecation reflex. 4, cortical inhibition of the desire to defecate, such as work tension, travel, change in routine, emotional depression and overexertion can make the desire to defecate inhibited, in addition to local lesions of the rectum, such as hemorrhoids, anal fissure will cause painful stool, so that the stool is inhibited by the brain. 5, defecation weakness, such as the elderly, long-standing illness, weakness of the diaphragm, abdominal muscles, intestinal smooth muscle contraction, lack of power to push the stool. Defecation precautions 1, in order to ensure the smooth flow of stool, you need to drink a lot of water, drink a large glass of warm water after waking up in the morning, on the one hand, is conducive to cleaning the stomach and intestines, on the other hand, is also conducive to intestinal peristalsis, so easy to produce stool. 2, do not force when stool, because the stool in the rectum, will immediately produce stool and natural discharge, no need to force. When the rectum is not stool, force is completely useless, purely a waste of expression and useless work, and force will make the anus sharply contracted and increase its blood flow, and in the long run is prone to hemorrhoids. 3, meat and spicy food is not conducive to excretion, eat more leeks, apples, bananas and other green food can help us defecate.