title_body: Can drinking 45ml of spirit (40%) per day affect your health?
upvoted_answer: To answer your last question first, drinking 1 drink a day will not make you dependent. Drinking 3 or 4 times that amount probably won't make you dependent physically. Physiologically, you might become dependent on drinking for the effects but with that little amount, it would be very tough to be physically dependent. It's more of a bad habit at that point. I have a family member that was/is an alcoholic and he was drinking a pint of vodka a day. Obviously he was physically dependent. 
  
  As someone who was physically dependent on cigarettes a while back, I have never had anything approaching those nicotine cravings. Unless, you've been there you'll never know. But, I do have a habit of coming home from work, cracking a beer and eating dinner. It's relaxing and tastes good.
  
  I know family members that have been drinking almost every day since they were 18 (now in their 80s) and sharp as a tack and others that never drank that can barely remember what day it is. The human body is widely different from one person to another. Some native Americans have a really hard time metabolizing alcohol, while northern Europeans have livers of steel. 
  
  So, the answer to your question is that it depends. It depends on so many variables, you'll never get a straight answer. The best thing you can do is drink as little as possible and enjoy yourself. Don't binge drink and don't get into a habit.