Within 20 minutes of your last cigarette, your blood pressure and pulse rate drop and the body temperature in your hands and feet increase to normal levels. In 24 to 48 hours the carbon monoxide level in your blood drops to normal and oxygen carried in the blood increases. Your risk of heart attack decreases. In 48 hours your nose's nerve endings start regenerating, and your senses of taste and smell are enhanced. You will breathe easier, although you may notice that you may continue to cough more for awhile. And you will be free from the mess, smell, inconvenience, expense and dependence of cigarette smoking.