welcum to health care magic,
even a single cigg per day is also harmful as leads to dependency and also lead to acute conditions like gastritis
and prolong smoking for many years leads to complications like copd
also can lead to carcinoma of lung, so try to quit smoking , for that u can use the nicotine
gums ,whenever u feels like smoking jus chew tat gum for minimum of 10 min , gradually u reduce that gum also , mainly u need motivation to quit .