I heard a lecture about the bacteria in intestine as an educational lecture yesterday. The speaker was professor of Keio university, Takanori Kanai. According to the latest research, the bacteria in intestine is headquarter to keep the health. Human has 100 trillion bacteria in ones intestine. Human is healthy if the bacteria are living in a well-balanced condition, but when the balance is destroyed , human will be ill. So called good bacteria are brought up by the fiber, bad ones are bought up by glucose and fat. If the bad bacteria increase, it is said that people are apt to have cancer, diabetes , rheumatic disease , nerve disease or mental illness etc. You should eat fiber much more than glucose or fat if you want to maintain your health. Recently the study about using feces of a healthy person as a therapy is starting. For instance, the patients who are suffered by chronic severe diarrhea are cured by healthy person's feces per-oral or per-anal. As the feces contain great bacteria , they may be the most effective medicine for such patients.