Never take meat, cigarettes and other intoxicants and drugs. Habitual cigarette smokers develop cancer. You can perform this test on the smokers. Take a white cloth and put it across the mouth after the person has smoked. You will see bright red dots on the cloth. When the external clothe itself has been so noticeably spoilt, you could well imagine how much destruction it would be causing to the veins and the lungs. The two fingers that hold the cigarette together will develop a yellow colouration. White spots develop on the lips. The skin around the lips turn dark. (M, p. 212)