What’s Booze Got to Do with Fingers?

The study measured the finger lengths of over 250 university students—169 women and 58 men—and compared their drinking habits. Specifically, they looked at the 2D:4D digit ratio, which measures the length of the index finger compared to the ring finger.

Here’s the deal:

• A longer ring finger than your index finger (low 2D:4D ratio) suggests higher exposure to testosterone in the womb.
• A longer index finger points to more prenatal exposure to estrogen.

The “booze clue” theory suggests that those with a low 2D:4D ratio—more testosterone exposure—are more likely to drink heavily.

In other words, if your ring finger dominates your pointer, you might be predisposed to enjoy a pint or two.

A Fun but Controversial Bar Test

While the idea of using finger length to predict personality traits or habits isn’t new, it’s not without controversy. The 2D:4D ratio has been previously linked to everything from athletic ability to risk-taking behaviours and even parental income. Now, it’s entering the boozy arena.

The study’s lead professor admits there’s still a lot to explore, but the findings raise interesting questions about how our prenatal environment shapes our future habits—even those involving the bar tab.

Related: Women Who Drink More Than 8 Alcoholic Beverages A Week Are At Greater Risk of This

Should You Blame Your Fingers for Your Drinking Habits?

Before you start comparing hands with your drinking buddies, it’s worth noting that this study is just one piece of the puzzle. While it’s fascinating to think that something as simple as finger length could connect to your drinking preferences, lifestyle and personal choices still play the biggest role.

So, next time you toast with a cold one, maybe give a little nod to your ring finger—it might deserve some of the credit. Cheers! 🍻