> When you're smoking - or rather in the breaks between smoking - the vascular system undergoes hypertension, which then is marginally reduced by the relaxatio

> When you're smoking - or rather in the breaks between smoking - the vascular system undergoes hypertension, which then is marginally reduced by the relaxation that another hit of nicotine provides. So your baseline 'stress' increases as a result of smoking, and having another cigarette/cigar temporarily reduces that. So the net effect of not smoking plus your relaxing environment would be more relaxing without the cigars in the first place. This theory was popularised by Allen Carr in his Easy Way to Stop Smoking (or at least that's where I heard it, and the book was published in the early 80s).