In recent years, sociologists and epidemiologists have begun studying the long-term effects of loneliness. It turns out to be really dangerous. We are social primates, and when we’re cut off from the social network, we are more likely to die from just about everything (but especially heart disease). At this point, the link between abstinence and social isolation is merely hypothetical. But given the extensive history of group drinking – it’s what we do when we come together – it seems likely that drinking in moderation makes it easier for us develop and nurture relationships. And it these relationships that help keep us alive.

According to a growing body of evidence collected over the last three or more decades, people’s Jekyll and Hyde behaviour while drinking can be understood by a simple idea which has some intriguing ramifications.

The alcohol myopia model says that drink makes our attentional system short-sighted and the more we drink, the more short-sighted it becomes. With more alcohol our brains become less and less able to process peripheral cues and more focused on what is right in front of us…

More here.