What a scale actually means and what we can do with it depends on what its numbers represent. Numbers can be grouped into 4 types or levels: nominal, ordinal, interval, and ratio. Nominal is the most simple, and ratio the most sophisticated. Each level possesses the characteristics of the preceding level, plus an additional quality. Nominal. Nominal is hardly measurement.
If that's not bad enough, then consider the fact that, over the long-term, alcohol can cause you to be more likely to get sick and can result in severe liver damage. This is because alcohol leads to a condition called cirrhosis, which is the scarring of the liver.
Alcohol, even in small amounts, affects physical co-ordination, reaction times and judgment. It affects the areas of the brain involved with decision making. It also affects how we see and react to things that happen and how we see situations, it can cause paranoia, and jealousy.