I drink 12 pags whishkey everyday , from last 3years .how harmful it to my body does it causes cancer or liver failure?and smoke 12 cigarette a day.

Alcohol excess: Yes. 12-13 pegs of whiskey daily is excessive. It also apparently affects one's ability to spell! and yes it places you at risk for many consequences - both short and long term.

Pag: I understanf a pag to be somewhere between 30-50cc (about 1 shot). You clearly are drinking an excessive amount of alcohol and i would suggest that you get help immediately. You certainly can cause liver failure, cancer is a little more grey area. Hope this helps.

Very harmful: Alcohol in the amount you are consuming is very harmful to your body. It is definitely destroying your liver and can cause liver cirrhosis with resultant liver failure. Liver cirrhosis can also turn into cancer especially if you have other conditions such as hepatitis b or c or HIV and alcohol abuse. It also affects all your other organs, such as brain, heart, vessels, eyes, nerves, sex organs, et.