Pack of cigarettesa day -about 500X-rayirradiationfor the year!Temperatureof 700-900degreessmoldering cigarette!Smoker's lungswith the experience -black,rottingmass.Afterinhalingnicotine enters thebrainin 7seconds.Nicotinecauses spasmof vessels,fromheremalnutritionoxygen to tissues.Spasmof small vesselsmakes the skinaging.The hazards of smokingin the factthatthere isbad breath, yellowteeth,inflamedthroat,eyesturn redfrom theconstant irritationof smoke.