1. It is standard drinks. A reasonable sized medium strength beer can be ~1.6 standard drinks, so you'd only need 3 of those for 5 on a weeknight. A standard

1. It is standard drinks. A reasonable sized medium strength beer can be ~1.6 standard drinks, so you'd only need 3 of those for 5 on a weeknight. A standard drink generally corresponds to one shot (44ml) of spirits. 2. You're a "heavy drinker" and 20 drinks on a weekend seems like a lot? I'm done that numerous times and I hardly even enjoy drinking, to the point where I completely quit with almost no effort.