Of course the vast majority said they'd smoke a cigarette.
I've never been a heroin addict, but I've been a tobacco smoker for many years and I can confirm that smoking a cig was definitely the most important thing I had to do in the morning.
Also if I had to spend my last money on food or a pack of cigarettes, obviously and without further consideration, I would choose the cigarettes.
So yeah, pretty addictive.
I've stopped smoking 18 months ago, but even after 1.5 years, I still get the urge to smoke almost every day.
I have anecdotally heard that if one had not smoked by adulthood, chances of addiction are fairly low.
Its hard to get rid of those sort of addictions.
Actually, that's incorrect. Nicotine acts as a stimulant and constricts blood vessels, which causes all kinds of serious circulatory problems in the long term - high blood pressure, heart attacks, strokes and so on.
Unfortunately there's no easy way around nicotine, you just have to stop ingesting it.
The gum/patch can alleviate the withdrawal symptoms, but you'll still have to quit the gum.
From http://whyquit.com/pr/082613.html
A 2013 Gallup Poll finds that 92% of successful ex-smokers did not use the nicotine patch, gum, Zyban, Chantix or Champix, that most quit smoking cold turkey.
http://circ.ahajournals.org/content/130/16/1418
"There are some studies of prolonged nicotine replacement therapies (NRT) in smokers who have quit smoking. In these studies, no adverse effects have been found when nicotine medication was administered for months to several years. Other studies indicate that patients with known cardiovascular disease tolerate NRT well for periods up to 12 weeks. "
By far, the danger is in the smoking, not the nicotine in your bloodstream.
The Gallup survey
http://www.gallup.com/poll/163763/smokers-quit-tried-multipl...
allowed an open-ended response, so someone "might have decided to quit" or quit because "it was time" but also used an NRT to help them through the cravings and not have mentioned that to the interviewer.
There are few short term advantages to quitting smoking - your sense of smell improves and you have more spare time on your hands - other than that, there's little to brag about.
By going through this short term suffering, you're improving your long term health.
If someone (God) came to you and said: "Hey, I'll add 10 healthy years to your life if you agree to go through a period of feeling shitty and some mental fog and restlessness and nervousness for a couple of months".
I guess we'd all agree to such a deal and it's pretty much the deal you have right now, so hang on.
Congratulations on your decision and good luck !
I'd choose the food.
Cigarettes, on the other hand, I've smoked a couple of times (1 or 2 cigarettes each time), and every time there's been this thought at the back of my head "I should get some cigarettes" for most of the following day. It's obviously not addiction and easy enough to ignore, but it's definitely a noticeable effect. Interestingly two lengthy (4 hour plus) shisha sessions didn't have the same effect (was a little light-headed and felt like I'd had about 50 cups of coffee, but no effects or cravings the following day).
http://media.economist.com/sites/default/files/imagecache/or...
Edit: here another chart showing the 'dependence' of tobacco is very high:
http://medicalmarijuana.procon.org/files/1-medical-marijuana...
However withdrawal from benzodiazepines and alcohol are both very dangerous and can lead to death.
http://americanaddictioncenters.org/withdrawal-timelines-tre...
I believe that while both nicotine and opiates can be addictive from first use, it takes a much longer prolonged use of nicotine to form a strong physical dependence (from personal experience, on the order of a few years of regular use), unlike opiates which can form a strong physical dependence after just a short time (as little as just a few weeks of regular use).
I smoke a pipe on weekends. I have no physical craving for tobacco during the week and sometimes I just don't want to even on the weekends. The most amount of cigarettes I had throughout my life was probably equal to one pack and I never inhaled it because I don't feel like choking on smoke.
The worst effect I get with nicotine is dizziness but never any physical dependency or withdrawal from its absence in my body.
I just wish they did more studies on the effects of occasional use of tobacco, via pipes and cigars to see the effect of what occasional smoking does to someone.