A study found that drinking just four glasses of wine or beer per week can increase the chance of developing dementia.
Researchers have warned it raises by half the chance of suffering problems with short-term memory and spatial awareness – how we perceive the space around our bodies.
According to them, dementia could result from failure to reduce drinking to safe levels.
The four pints level – eight units – compares with NHS advice to drink a maximum of 14 units a week.
Researchers analysed the data of more than 15,000 individuals over 50 years old and followed them for two consecutive years.
The amount and frequency of their consumption was evaluated and the participants took tests to test their thinking skills.
King’s College London’s researchers analysed data from more than 15,000 older people and kept them updated for two years. (Stock image).
The people hitting ‘risky levels’ of drinking – equal to eight units a week – suffered a greater decline in short-term memory and spatial awareness.
A slight increase in the severity of mental impairment is all that could make someone more susceptible to dementia.
The study was led by Dr Tony Rao at King’s College London. Tony Rao is a consultant psychiatrist and said that he has spent more than 20 years researching alcohol and dementia.
The study found that none of the participants were diagnosed with dementia, although those who consumed excessive amounts of alcohol at start of study had a higher risk of developing cognitive decline.
“Scoring over the threshold for dangerous drinking is not only applicable to binge or heavy drinkers.
“For instance, it’s possible [to be above the threshold] even if someone is drinking two units of alcohol – the equivalent of a pint of beer or small glass of wine – four times a week.
“This is a surprising statement and it dispels the belief that alcohol can somehow be good for your brain.
He stated, “Using diagnostic tests early to detect cognitive impairments can prevent future decline into dementia.
The people hitting ‘risky levels’ of drinking – equal to eight units a week – suffered a greater decline in short-term memory and spatial awareness. One person could be diagnosed with dementia if they experience a slight increase in their mental impairment (file photo).
“With alcohol abuse, it is completely preventable if people are identified early and cut back or abstain. This has the potential of improving public health.
Rosa Sancho of Alzheimer’s Research UK stated that the findings give even more weight for the advice to people to stick to recommended guidelines.
Men and women are advised by the NHS not to consume more than 14 units per week.
It is equivalent to six pints (4%) beer and six glasses (13.4%) wine, or seven double portions of 40% spirits.
Dr Sancho stated that reducing alcohol intake can lead to long-lasting health benefits, which aren’t just limited to brain health.
Research findings from the study were published by Aging and Mental Health.