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It's very hard to stop drinking if you ever get a habit, you can put it away for a few days only. I anyone can get an addiction to any kind of drug, be it even food.

Food does not intercource with neurotransmitters directly, like nicotine or alcohol. So it can not be considered as the drug. Relatively it is more simple to stop drinking and almost impossible to stop smoking. I have know lots of people who can control alcohol addiction, but cant stop smoking. Although both are harmfull, but smoking kills more.

The problem about drinking is that alcohol has a social influence and more aceptance than other kind of drug, and you have might be more in touch with alcohol than with other substance like THC or any other. by that reason drinking will never be consider like a adicction like it is with smoking. You will always drink and it'll appear to be soccial not like smoking.

Some substances are far more addictive than others. Nicotine is one of them. In fact, it's more addictive than some illegal drugs.

It isn't easy to stop drinking, not if you have actual alcoholism. But I guess nicotine is more addictive than alcohol. I haven't looked into it yet, but that'd be my educated guess.

Not easy, but relatively easy comparing to stop smoking, when we talk about common people, not alciholics.