You may think that getting older is to blame for your hangovers becoming worse and worse, but as it turns out, it could be the winemakers.
In a new study published by the Journal of Wine Economics, it found that wine is getting boozier each and every year.
Researchers from the University of California tested more than 127,000 wines from all around the world, from the years 1992 to 2009.
They tested the actual alcohol percentage in each bottle and then compared the number to the percentage listed on the label.
And guess what? In most cases, the actual percentage was higher than what was listed.
Older, European wines had a higher alcohol percentage than newer wines and wines from cooler climates, like Canada, had a lower percentage than wines from hotter places, like the U.S and Australia.
Red wines were way boozier than white wines, and overall, they have all a higher percentage than what they had a couple of years ago.
And the most disturbing fact of all? Winemakers are often wrong (or lying to us) about how much alcohol is in their bottles.
The researchers found that the average content was 13.56%, but the average number on labels was 13.15%.
Now this may not seem like much, but the researchers warned that it could be very dangerous.
"Even errors of this magnitude could lead consumers to underestimate the amount of alcohol they have consumed in ways that could have some consequences for their health and driving safety," they wrote.
So, there you go, maybe it wasn't your fault you got so drunk on New Year's… Maybe.