This comment is recklessly ignorant: within 24 hours after your last cigarette, there is already a significant difference in blood pressure, and within a month the lungs have already begun to heal. Within a year the lungs have healed substantially. After a year, a person's risk of having coronary artery disease is cut in half.
Smoking causes permanent damage, but spreading misinformation about "the damage already being done" is really unhelpful.
Not really. It's not like there's a certain amount of smoking you can do and then you max out on the damage you can do to yourself, and any smoking after that point is "free" in terms of health consequences. It's cumulative.
