From the Glossy Page Blog

There are a number of benefits of quit smoking. The health benefits are immediate and considerable. The blood circulation begins to improve immediately and the level of carbon dioxide in the blood reduces. This carbon dioxide is present in the cigarette and reduces the ability of the blood to carry oxygen. Pulse rate and blood pressure starts returning to normal as soon as the person starts quit smoking. These are abnormally high for smokers. The sense of taste and smell returns to normal. Breathing also becomes easier. So, enjoy these immediate effects of quit smoking.