I didn’t think having 1 a day was a big deal

One drink per day can shorten lifespan: The study suggested that consuming around 100 grams of alcohol weekly could reduce a person’s lifespan by roughly six months to two years, depending on the quantity. One drink per day typically equates to about 98 grams of alcohol per week, which puts moderate drinkers at risk for a life expectancy reduction of two months or more.

Cardiovascular risks rise with moderate consumption: While some previous research suggested benefits to heart health, this study found that moderate drinking actually increased the risk of stroke, heart failure, hypertensive heart disease, and fatal aortic aneurysms. For each drink above the threshold of 100 grams of alcohol per week, the risk for these conditions increased .

Greater risk with higher consumption: The more alcohol consumed per day, the more significant the reduction in lifespan. Drinking 2-3 drinks daily could shorten life expectancy by several years due to increased risks of cancers, liver disease, and other conditions.

Even at moderate levels, alcohol impacts the body in several ways that can lead to serious health problems over time.

1. Increased Cancer Risk
One of the major concerns linked to alcohol consumption is an increased risk of developing cancers, including cancers of the mouth, throat, esophagus, liver, colon, and breast. The International Agency for Research on Cancer classifies alcohol as a Group 1 carcinogen, placing it alongside known carcinogens such as asbestos and tobacco.

A recent study published in The Lancet Oncology found that alcohol was responsible for over 740,000 cancer cases worldwide in 2020. Even small amounts of alcohol increase the risk of these cancers, with the risk rising exponentially as consumption increases .

2. Impact on the Heart
Although previous studies have linked moderate alcohol consumption to a reduced risk of heart disease, more recent research disputes these findings. The 2018 Alcoholism: Clinical & Experimental Research study found that even moderate drinking raises the risk of several cardiovascular problems, including stroke and hypertension.

Alcohol raises blood pressure, causes irregular heartbeats, and can contribute to the buildup of fatty deposits in arteries. This puts even light drinkers at risk of serious heart problems over time.

The liver is particularly vulnerable to the effects of alcohol. Even moderate drinking can contribute to liver inflammation and the early stages of liver disease, such as fatty liver. Heavy drinking can lead to cirrhosis, a condition where the liver becomes scarred and loses its ability to function.

One reason why older studies suggested health benefits to alcohol consumption may be related to confounding variables. Many of these studies did not account for lifestyle factors that could skew results, such as diet, exercise, or socioeconomic status. People who drank moderately and had better health outcomes might have benefited more from their overall lifestyle rather than from alcohol itself.

In recent years, more sophisticated methods have been used to isolate the impact of alcohol, leading to different conclusions. For example, the Global Burden of Disease study used comprehensive data from across the world and considered a wider range of health outcomes, finding no safe level of alcohol consumption .

Given the increasing evidence that even one drink a day can be harmful, many health experts now advise cutting down or abstaining from alcohol entirely. While quitting may not be necessary for everyone, moderation is key. If you currently drink every day, cutting back to a few times a week or limiting yourself to special occasions could significantly lower your health risks.

For those who are concerned about the health effects of alcohol, here are a few practical tips:

Alternate with non-alcoholic drinks: For every alcoholic beverage, drink a glass of water or a non-alcoholic alternative.

Set limits: If you do drink, stick to no more than a few drinks per week, and avoid binge drinking.

Monitor your health: If you experience changes in your health—such as weight gain, high blood pressure, or digestive issues—it may be time to reassess your drinking habits.

Conclusion: A Paradigm Shift in Alcohol Research
The idea that one drink a day could shorten your life may come as a surprise to those who believed in the protective effects of moderate drinking. However, emerging research paints a different picture, showing that even moderate consumption of alcohol carries significant risks, including a reduction in life expectancy.

As science continues to evolve, it is clear that when it comes to alcohol, less is more in terms of health benefits. While the occasional drink may not pose a significant risk for everyone, the safest option, according to current research, may be to minimize alcohol consumption as much as possible.

In light of this, people who regularly consume alcohol might want to reconsider their habits in order to preserve their health and longevity.