This Is Why It's So Hard to Learn a Second Language as an Adult

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iStock

If learning a foreign language seems to get harder and harder with age, it isn't just your imagination. A new study by Boston-based researchers, including experimental psychologist Steven Pinker, finds that language-learning ability starts to decline after age 18, the BBC reports.

And if you want to sound like a native speaker, your chances are better if you started learning before the ripe old age of 10. Using the results of an online grammar test that was circulated on Facebook, researchers determined that children have the best capacity for learning complex grammar rules, while those of us who started learning a language in adulthood "are often saddled with an accent and conspicuous grammatical errors." Their findings were published in the journal Cognition, and they're in the process of developing similar tests for Spanish and Mandarin speakers.

The online test was taken by nearly 670,000 Facebook users of all ages from around the world—one of the largest linguistic studies ever conducted, according to Scientific American. Test takers were asked their age, how long they had been learning English, and the countries they've lived in for at least six months. The study found that people who learned a language by immersion were more fluent than those who learned in a classroom. Based on these test results and demographics, researchers developed models to predict how long it takes to achieve fluency in a language.

Researchers aren't sure what causes the drastic decline after age 18, but they believe it has something to do with the fact that the brain becomes less adaptable in adulthood.

However, that's no reason to sell your Rosetta Stone software just yet. Researchers say dedicated language learners can still become proficient—even fluent—well into adulthood. A study from 2014 revealed that learning a new language as an adult can help slow brain decline, and other studies point to the benefits of being bilingual, including a later onset of dementia. But the Boston researchers also found that it takes 30 years to fully master a language, so it's best to get started right away.

[h/t BBC]

Presidents Day vs. President's Day vs. Presidents' Day: Which One Is It?

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iStock

Happy Presidents’ Day! Or is it President’s Day? Or Presidents Day? What you call the national holiday depends on where you are, who you’re honoring, and how you think we’re celebrating.

Saying "President’s Day" implies that the day belongs to a singular president, such as George Washington or Abraham Lincoln, whose birthdays are the basis for the holiday. On the other hand, referring to it as "Presidents’ Day" means that the day belongs to all of the presidents—that it’s their day collectively. Finally, calling the day "Presidents Day"—plural with no apostrophe—would indicate that we’re honoring all POTUSes past and present (yes, even Andrew Johnson), but that no one president actually owns the day.

You would think that in the 140 years since "Washington’s Birthday" was declared a holiday in 1879, someone would have officially declared a way to spell the day. But in fact, even the White House itself hasn’t chosen a single variation for its style guide. They spelled it “President’s Day” here and “Presidents’ Day” here.


Wikimedia Commons // Public Domain

Maybe that indecision comes from the fact that Presidents Day isn’t even a federal holiday. The federal holiday is technically still called “Washington’s Birthday,” and states can choose to call it whatever they want. Some states, like Iowa, don’t officially acknowledge the day at all. And the location of the punctuation mark is a moot point when individual states choose to call it something else entirely, like “George Washington’s Birthday and Daisy Gatson Bates Day” in Arkansas, or “Birthdays of George Washington and Thomas Jefferson” in Alabama. (Alabama loves to split birthday celebrations, by the way; the third Monday in January celebrates both Martin Luther King Jr. and Robert E. Lee.)

You can look to official grammar sources to declare the right way, but even they don’t agree. The AP Stylebook prefers “Presidents Day,” while Chicago Style uses “Presidents’ Day.”

The bottom line: There’s no rhyme or reason to any of it. Go with what feels right. And even then, if you’re in one of those states that has chosen to spell it “President’s Day”—Washington, for example—and you use one of the grammar book stylings instead, you’re still technically wrong.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

11 Words You Might Not Realize Come From “Love”

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iStock.com/PeopleImages

1. BELIEVE

In Old English, believe was geliefan, which traces back to the Germanic galaubjan, where laub is the root for “dear” (so “believe” is “to hold dear”). Laub goes back to the Proto-Indo-European root for “love,” leubh.

2. FURLOUGH

We got furlough from the Dutch verlof, which traces back to the same Germanic laub root as in believe. It is also related to the sense of leave meaning "allowance" or "permission" (“get leave,” “go on leave”). The “leave” in a furlough is given with pleasure, or approval, which is how it connects back to love.

3. FRIDAY

Old English Frigedæg was named for Frigg, the Germanic goddess of love (and counterpart to the Roman Venus). According to the OED, frīg was also a noun for “strong feminine” love.

4. VENOM

Venom comes from the Latin venenum, which shares a root with the love goddess Venus, and originally referred to a love potion.

5. AMATEUR

The root of amateur is Latin amare, “to love.” An amateur practices a craft simply because they love it.

6. CHARITY

The Latin caritas, which ended up as charity in English, was a different kind of love than amor, implying high esteem and piety, rather than romance and passion. It was used to translate the Ancient Greek agape, the word used in the New Testament to express godly love.

7. PHILOSOPHY

Greek had another word for love, philia, that—in contrast to agape and eros (sexual love)—meant brotherly or friendly love. It’s used in many classical compounds to signify general fondness or predilection for things. Philosophy is the love of sophos, wisdom.

8. PHILANTHROPY

This one means love of anthropos, humanity.

9. PHILADELPHIA

You might know it as the “city of brotherly love,” but you might not know that the tagline is right there in the name. It’s love for adelphos, brother.

10. PHILIP

The name Philip comes from the compound phil- + hippos, love of horses.

11. ACIDOPHILUS

Have you been taking acidophilus probiotic supplements for digestive health? It’s made from acid-loving bacteria, i.e., bacteria that easily take up an acid dye for viewing under the microscope.

This list originally ran in 2015.

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