How bad is drinking about half a fifth a day? Evenings...how long till the liver gives out at this rate?
Everyone is different. I've got a friend probably pushing up to a 750ml/day of 80 proof whatever. He's been at that pace for a while and has normal metabolic panels (liver function tests). Chronic liver failure is right up there with dying in a fire, as far as I'm concerned.
Although you may think your body can handle it, it has some long term effects. From 25-30 years ago, I'm now on a blood draw about every other month to monitor function. I won't be one of those to promote teatotalling, but I can attest to the result of the excess. Not everyone outlives their stupid years.(I shouldn't have) Those that do have the experience to share with the next set of up and comers.
190lbs and half a bottle a day? I have a better rule of thumb about this stuff. If you have to ask the question, it may be a problem.
While that's a great deal for someone that only drinks once a month or so.... that's really just a good "buzz" for the pro drinker. The typical drinking guy can pound down a 12 pack or 1/2 a fifth of whiskey in an afternoon .{or length of a Nascar race} with no problem. And still make it to work the next day. What that does to your body is a different story. I'd say that depends on your metabolism. If you work hard and "burn" it off your likely to respond better. If your a couch potato...... your going to get fat.....and have complications. Somebody buy me a beer.......