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Legal threats of the kind which abruptly halted the first trial of cancer warning labels in Canada’s Yukon territory before Christmas are not altering plans elsewhere.

Measures proposed last month in Australia call for “readable, impactful” warning labels. And Gerald Nash, an Irish senator, introduced an amendment to a recent alcohol bill to include cancer warnings.

“Given the strength and level of support expressed in the Senate, I expect that the bill will receive the same level of support when it moves to the Dàil [Ireland’s Lower House],” Nash told Alcohol Companion.

Donal Buggy of the Irish Cancer Society says he is confident, “The public health imperative for inclusion of cancer-specific labelling warnings will prevail over the narrow sectoral interests of the alcohol industry.”

Legal threats are “not an issue” in Australia, says Michael Thorn, head of Foundation for Alcohol Research and Education: “Australia took it up to the tobacco industry on plain packaging and won.”

The initial focus of Thorn’s efforts will be to  secure mandated warning labels on the dangers of drinking while pregnant, paving the way for others. This might happen in the next 18 months, he says.

In Ireland, meanwhile, one seasoned observer suggests public support for the alcohol bill would mean any attempt by the alcohol industry to stand in its way would be a “PR disaster”.

The next phase of alcohol industry resistance there seems more likely to be quibbling about the format and wording of warning labels than whether they appear.

It is currently unclear whether the Yukon trial will restart. ■

As responsible adults we should be presented with accurate, eye-catching and timely information about alcohol’s immediate and long-term effects. Anything less is to squander the benefits of decades of scientific research.

Whether we are from the left, right or centre politically, we cannot deny we are better off for encouraging choices which serve our long-term interests. And there is a mountain of scientific evidence showing alcohol impairs this kind of decision-making.

As a sedative alcohol causes a kind of acute cognitive near-sightedness, with our mental life more than usually occupied with attending to our immediate surroundings. Matters beyond these narrow confines often slip our minds, whether next door or tomorrow morning.

The haze of inebriation can also mean we do and say things which, to coin a phrase, “seem like a good idea at the time”, only to prove otherwise later. These can range from the faintly embarrassing to the life-changingly serious, depending on the circumstances we encounter.

Regularly drinking above a low level of around 14 UK units (140ml/4.7 fl oz) a week can disturb our sleep, lower our mood, impair our sexual function, increase our anxiety and blur our memories.  These largely ignored side-effects can undermine our quality of life and limit our choices.

Should we drink more than a little for a period of weeks, months or years we may unwittingly slip into a degree of alcohol dependency, where our brains adapt to alcohol inebriation. We might then start to find we act more on the spur of the moment and have trouble making and fulfilling plans.

As a species we look for solutions and drinking alcohol can seem to be one off the peg. It relieves our discomforts, particularly after we are dependent. So it is hard to remember it is a sticking-plaster and the cause of many difficulties and discomforts we hope to escape.

Alcohol’s interference with our mental capacities and effect on our behaviour are undisputed science. Its fascinating complexity fills Alcohol Companion, which provides an accessible account. The problem is not that its contents are contentious, but that knowledge is not widespread.

Also scientifically unquestioned and too-little-known are the effects of alcohol drinking beyond our brains. Above a low level it increases our risk of cancers, heart problems, liver problems and physical injuries, as well as trouble with the law, relationships and employment. It is involved in most early-onset dementias and triples the risk of all types of it.

Warnings need to reach us reliably at the times and places it is most helpful to us. One simple remedy is to provide more informative labels. Such labels are now in the pipeline in Ireland and Australia. Efforts in Canada and the EU, however, are delayed, and blocked in the UK.

The invective used to justify the lack of label information is a reversal of the truth: It is the killjoy who fails to warn fellows of the risk of fueling depression and anxiety; And the crudely caricatured “nanny” of pro-alcohol cliché would be the first to shield us from disconcerting facts.

Few of us find cause for alarm or resentment in a road sign. Keeping alcohol drinkers in the dark at the moment we make our decisions to drink or not is to deny us the benefits of science.

Alcohol drinking impairs our short- and long-term decision-making, especially around alcohol drinking. It is self-serving flattery to suggest otherwise. We should be treated like adults, rather than taken for fools. ■

Drinking more than a small amount of alcohol can cause cognitive decline in middle and old age a new study has confirmed.

The decline increases with the amount of alcohol we drink above a low threshold and rises with age. The UK guidelines suggest no more than 14 units (140ml) of alcohol a week.

The new study, however, caused a stir because it found the negative effects begin above 9 units a week, five units below the current guidelines.

Professor David Spiegelhalter, a statistician and communicator at Cambridge University says a graph in the study simply confirms 14 units a week, or 16g a day, is where decline is least (see chart). 

“It’s not as straightforward as looking at the graph,” says Professor Simon Moore, one of the study’s authors, who says its lower threshold comes from the calculation involved in fitting the curve to the data.

The debate was fueled by Sun newspaper coverage of the study which came under a headline saying a pint a day might increase our risk of dementia. It seems to be correct:

A daily pint of 5% lager comes to a total of 16 units of alcohol a week, above both the official low-risk limit as well as the lower one suggested by the new study. ■