any amount of cigarettes will be detrimental especially if smoked over 3 years and i'll guarentee youre habit will increase over time, we all start out saying ahhh just the odd one now and again now im on 30 a day... dont try and rampup youre smoking even by a small amount, youll regret it.
However i cant tell you whatyou can and cannot do so i'll try and be as helpful as possible here;
American Spirits are additive free yes but as it says on the pack that doesnt make them any better for you, just not quite as bad but to be honest there isnt much difference, they just have a better flavour to them. By additives theyre generally reffering to pesticides and what have you aswell though.
Cheap but decent? Well you get what you pay for and in the good olddays thatused to be an easy rule to abide by but the government in their perpetual idiocy with taxes have been whacking higher rates of tax on normal cigarettes whilst only putting a smaller one on premium cigarettes thus theyre all around the same price now give or take 50p at max which to be honest isnt much... so in my experience the best cigarettes youll find are;
Dunhill, Davidoff, Lucky Strike, Phillip Morris, American Spirit, Chunghwa, Chancellor executives [only ever seen them in London and Edinburgh though], Tor and George Karelias Excellence.
Once again i dont recomend you take up smoking on regular basis... take this from someone who smokes like a chimney youll regret it big time, perpetual cough, poorer health, yellow teeth and skin and of course they cost a mint in the UK...wish id never started to be quite honest but if youre going to smoke at least smoke good cigarettes and those are the creme de la creme.