ok, this is very important about smoking….
1) Smoking once is enough to be addicted. Nicotine is so addicting that it can catch people the first or second time they try to smoke.
2) It takes at least ONE MONTH to get rid of all damage that ONE cigarette does to your body. Now, having 3-4 (meaning of a few) takes at least 3-4 (or maybe more) MONTHS to get rid of all traces of it. Doing this every year can cause real damage to your body.
3) I know someone who stopped smoking for 22+ years after being a chain smoker for many decades. She still was niftar from lung cancer due to her smoking.
4) show your kids the pictures of lungs after smoking and they may stop.
5) what about the halacha to protect your body?? Ushmartem meod es nafshoteichem… if you wont do it for your physical well being, do it for the Olam Haboa.