I have Attention Deficit Disorder (ADD) which makes it very difficult to remember names and numbers for me (other People can add their own difficulty) and a whole plethora of problems one must learn to overcome. I've done this on my own from early childhood, people were always laughing at me when I didn't really understand something, even the simplest things. I spent a lot of time being embarrassed and hurt. I do indeed think differently. So I had to train myself how to mega-concentrate. I have two children also with ADD, and four out of five of my grandchildren have been diagnosed. The first was born Down Syndrome.
It takes tremendous conciousness to concentrate on the task at hand, however with the affliction concentration is also affected! I can multi-task like crazy, but if I get interupted it's over! Start over again. It gets dizzying, all brain functions which rely on efficient short and long term memory recall is sometime severely affected. Nicotine does seem to be advantageous to memory functions.
I've been self-medicating for years, the ability to 'relax' and be able to concentrate and carry out a task. However the side-effects from the other chemicals in smoke, especially carbon dioxide do negate any benefit, i/e sluggish thinking, unable to get good sleep, sort of foggy feeling, and so tired all the time.
So you can imagine how 'alert' I felt for the first time in years when I switched to an e-cig! It was amazing! I had to use the Dictionary when I first started posting on ECF, just to check myself, because previously I wouldn't attempt to spell certain words without looking them up. I couldn't believe being unaided, it was so surprising to me. Long-term memory not quite so hidden in my brain anymore! (Like a really bad filing system.)
My ADD hasn't gone away, it never will, but I am convinced I am far better off maintaining a low dose nic 6-12mg/ml intake with my e-cig than to try to quit completely. What the article said about too-high doses is absolutely correct, it does quite the opposite.
I love my e-cig.