Why do people use such a large amount of paper when they only use one tenth of the place to go to th

It is impossible for the human body to digest and absorb all the food, and stool is to remove food residues and part of the water; >>>More

It's the cause of the metabolism of the new city.

Joy hurts the spleen, anger hurts the liver, sadness hurts the lungs, and fear hurts the kidneys. >>>More

After a night's sleep, the food of the previous day was basically digested.

Because that's what the human biological clock is. And after sleeping in a circle, I must have to go to the toilet.