From a medical point of view, it also supports this issue. This is because when people sit on the toilet, it is necessary to tighten the body to make the body residue excreted, because the body's lower limbs are in a state of tension, resulting in most of the body's blood up, thus prompting the head to get a large amount of blood supply, naturally will make the head in the toilet memory better than usual.
正在翻譯中..
