13. Believe it or not, third hand smoke has also been linked to disease.  This is the residue of cigarette chemicals that are left on your clothes, your furniture, and carpet.  This can be inhaled even if a person hasn't smoked in the room for days. 

14.  The ALA notes there are over 4,800 chemicals in cigarettes, 69 of which are known to cause lung cancer via 1st, 2nd and 3rd hand smoke. Some of these chemicals include: Arsenic, Acetic Acid, acetone, Ammonia, Benzene, Butane, Cadmium, Carbon Monoxide, Ethanol, Formaldehyde, Hydrazine, Hexamine, Hydrogen Cyanide, Lead, Methane, Methanol, Naphthalene, Nickel, Nicotine, Phenol, Polonium, Steric Acid, Styrene, Tar, and Toluene.

According to this brochure from the Michigan Department of Community Health, here's the good news about quitting smoking: as soon as you quit smoking your body starts to fix itself. 

Consider the following:

15. Within hours after you stop smoking, your carbon monoxide level falls to normal and the oxygen in your blood increases.

16. One day after you stop smoking your risk for heart attack starts to go down.

17. Two days after you stop smoking your nerve endings start to repair themselves so your senses of taste and smell start to return to normal.

18.  Two weeks after you quit smoking your lungs are working 30% better than before

you quit.

19.  Within 1-9 months lung function continues to improve, cough, sinus congestion, fatigue and shortness of breath all decrease as your lungs regain normal function

20.  Within one year your risk of heart disease is cut in half, and within 15 years your risk of stroke, lung cancer and heart disease are that of a person who never smoked, and you can consider yourself fully healed.

So, now that you're ready to quit smoking, you can learn about the latest methods of quitting here.  If you're interested in a great stop smoking kit, check out this link here. 

Good luck.