It affects a lot and not only poker, more than 3 million people around the world die as a direct or indirect result of alcoholism.
You can even be a person who thinks he is totally strong in the face of alcohol, but anyone who drinks has already gone through unpleasant situations in life.
In poker, if you intend to be a winner, you must consume allcoll socially on off days, because alcohol, in the same way that calms you down, takes away many of the necessary factors for a good mental development in decision-making and emotional.
Poker you deal with personal development every moment of your career, how! Discipline that is fundamental to a good live series game or online grind will affect you in a huge way and you will be behind your opponents who train and work their mind daily.
Ex go out for a weekend and drink when you get back to your gaming routine you will see that your mind is not fully prepared, until it returns to normal it will take a long time for you to be able to make the best decisions.
Pro poker or serious grind is not indicated alcohol and other licit and illicit drugs.