In addition to poor physical activity and excess weight, the cause of diseases such as bowel cancer can be caused by incorrect sitting on the toilet when going to the toilet, says doctor Deborah Lee.
Intestinal cancer is becoming more common in today's society. According to Dr. Deborah Lee, a large number of epidemiological studies indicate that chronic constipation is a serious risk factor for developing this disease. The doctor states that the problem of constipation is greatly facilitated by improper sitting in the toilet.
The doctor said that more than 60 percent of the worldwide cases of bowel cancer are concentrated in countries where it is customary to sit on the toilet for emptying as if on a chair. Where the tradition of squatting for this purpose is widespread, bowel cancer is not so relevant.
Dr. Lee observed that sitting in a chair-like position was more likely to cause constipation than squatting. Squatting is a natural position for cleansing the digestive tract and allows gravity to do most of the work of emptying the intestines. In addition, it helps the ileocecal valve (the valve between the small and large intestines) to naturally clog itself – sitting like a chair prevents it from closing properly, making it difficult to achieve the necessary internal pressure in the intestines to successfully pass the stool. Also, by squatting, the body moves the sigmoid colon a little, getting rid of the kink and therefore allowing it to communicate more freely with the rectum. When a person sits on the toilet as if on a chair, the puborectal pelvic floor muscle remains compressed, which is used to maintain abstinence. As a result, the intestines experience a lot of tension, and this can increase the risk of colorectal cancer.
“Regular bowel cleansing without tension is important to minimize the risk of cancer. To reduce its risk, avoid constipation,” the doctor emphasized.
Dr. Li advises daily consumption of foods rich in fiber to prevent constipation – adults should consume about 30 grams. Too fatty, processed foods should also be avoided.
Another important factor is regular exercise: they effectively stimulate the active transit of intestinal contents.
Earlier, the MedikForum.ru portal wrote about what non-obvious signs indicate the presence of iron deficiency anemia. 
Deborah Lee Health Doctor, Dr Fox Online Pharmacy., Medical Writer