I hesitate to post this - I do not wish to encourage anyone to smoke.
But when I quit smoking, I completely lost my ability to FOCUS on my work.
I think that I am self-medicating for ADHD. I don’t know, all a doctor will tell you is to quit smoking, blah blah blah.
When I work, I get absorbed in a problem, I walk around, I juggle variables in my head, smoke, and eventually, I return to my computer and write down the answer.
When I quit smoking, I lost the ability to do this. Eventually, I could not live with myself, and decided brain power was better than lung power.
Yes, smoking is going to kill me. If the Melanoma doesn’t get me first.
But at least I can THINK.
Well, this is fascinating - as it turns out, I am not the only one to notice the effect.
http://adhd-treatment-options.blogspot.com/2009/02/nicotine-withdrawal-effects-differ-in.html