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Regular Excess Alcohol Consumption Linked to Lower Life Expectancy

by Colleen Fleiss on April 14, 2018 at 10:48 PM
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Regular Excess Alcohol Consumption Linked to Lower Life Expectancy

Regular alcohol drinking more than the recommended UK guidelines could take years off your life and associated with heart and circulatory diseases, according to new research published today in the Lancet. Part-funded by the British Heart Foundation, the study shows that drinking more alcohol is associated with a higher risk of stroke, fatal aneurysm, heart failure and death.

The authors say their findings challenge the widely held belief that moderate drinking is beneficial to cardiovascular health, and support the UK's recently lowered guidelines. The study compared the health and drinking habits of around 600,000 current drinkers in 19 countries worldwide and controlled for age, smoking, history of diabetes, level of education and occupation.

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The upper safe limit of drinking was about 5 drinks per week (100g of pure alcohol, 12.5 units or just over five pints of 4% ABV2 beer or five 175ml glasses of 13% ABV wine). However, The research supports the UK's recently lowered guidelines, which since 2016 recommend both men and women should not drink more than 14 units of alcohol each week. This equates to around 6 pints of beer or 6 glasses of wine a week. However, the worldwide study carries implications for countries across the world, where alcohol guidelines vary substantially.

The researchers also looked at the association between alcohol consumption and different types of cardiovascular disease. Alcohol consumption was associated with a higher risk of stroke, heart failure, fatal aortic aneurysms, fatal hypertensive disease and heart failure and there were no clear thresholds where drinking less did not have a benefit. By contrast, alcohol consumption was associated with a slightly lower risk of non-fatal heart attacks.
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The authors note that the different relationships between alcohol intake and various types of cardiovascular disease may relate to alcohol's elevating effects on blood pressure and on factors related to elevated high-density lipoprotein cholesterol (HDL-C) (also known as good cholesterol). They stress that the lower risk of non-fatal heart attack must be considered in the context of the increased risk of several other serious and often fatal cardiovascular diseases. The study focused on current drinkers to reduce the risk of bias caused by those who abstain from alcohol due to poor health. However, the study used self-reported alcohol consumption and relied on observational data, so no firm conclusions can me made about cause and effect. The study did not look at the effect of alcohol consumption over the life-course or account for people who may have reduced their consumption due to health complications.

Dr Angela Wood, from the University of Cambridge, lead author of the study said: "Alcohol consumption is associated with a slightly lower risk of non-fatal heart attacks but this must be balanced against the higher risk associated with other serious - and potentially fatal - cardiovascular diseases," Professor Jeremy Pearson, Associate Medical Director at the British Heart Foundation, which part funded the study, said: "This is a serious wakeup call for many countries."

Victoria Taylor, Senior dietician at the British Heart Foundation said: "This powerful study may make sobering reading for countries that have set their recommendations at higher levels than the UK, but this does seem to broadly reinforce government guidelines for the UK. "This doesn't mean we should rest on our laurels, many people in the UK regularly drink over what's recommended.

"We should always remember that alcohol guidelines should act as a limit, not a target, and try to drink well below this threshold."

Source: Eurekalert
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