Turning 30 Is the New 21, Says Science — Happy Birthday! (2024)

Turning 30 Is the New 21, Says Science — Happy Birthday! (1)

Jay Z might have been onto something when he sang prophetically “30 is the new 20,” but he was one year off, according to researchers at Melbourne’s Brotherhood of St Laurence. The researchers followed a group of people born in Melbourne in 1990 from the time they were babies, checking in with them every seven years. They discovered that, surprisingly, only 38 percent felt they had reached maturity at their 21st birthday. Another 13 percent strongly felt that they were not adults at 21. And the remaining 49 percent had no opinion. It’s not until the 30th birthday when we truly feel we have arrived at adulthood. We are maturing later and 30 is the new 21, is the researchers’ conclusion. So, in honor of being the youngest adults ever, let’s celebrate our late-onset adulthood with the ultimate 30th birthday party. Included are recipes for grownup stout cake, a balloon chandelier, mix-tape party ideas and even a “dirty 30” photo booth.

In fact, dirty 30 is a prevalent idea and you could build a whole party around just that theme and have fun. The Urban Dictionary defines the “dirty 30s” as the age at which single women without children realize that their biological clock is ticking and, as a consequence, may lower their standards … in order to find a mate.” Hah. We think it’s just that we’re in our sexual prime! Whatever the real meaning, the theme certainly can make for some drama in the photo booth.

We see a multitude of dirty-30-themed goodies on Etsy. But we could also DIY our own, for example making a chalk-paint banner like you see in these 30th birthday party decorations ideas. A variation on the theme. Think of the many fun words that rhyme with “thirty”. Flirty 30s. Birdie 30s. Squirty 30s. Wordy 30s. Perty 30’s (that’s, uh, like “pretty 30s” … if Billy Bob Thornton was saying it in Sling Blade — a totally scary but hilarious thought). Anyway, you get the idea. Now, time to get your make on.

Do you have a 30th birthday pic to share? Tag us on Instagram @britandco. Come on — you know you want to!

(Photo via Getty)

Sally Jones

Sally Jones is a writer and editor living in New York City. She has worked at many websites including iVillage, Ladies Home Journal, More, Parenting, Cosmopolitan, The Knot and YourTango, in jobs ranging from editor to COO. Renovation and interior design are her

unhealthy obsessions

hobbies. She has renovated every home she's lived in, including the rentals, and like... whoa, who does that? You can catch her at her blog Renov8or.

Turning 30 Is the New 21, Says Science — Happy Birthday! (2024)

FAQs

Why is turning 30 called dirty 30? ›

The “dirty 30” describes the increased amount of — ahem — fun that women have in their 30s. While we're not exactly crazy about the origins of this term, there is some truth to it. After all, the 30s mark a decade of increased confidence, financial stability, and increased self-knowledge.

Why is turning 30 so special? ›

Around 70% of those surveyed hit their happiness peak then, compared to 6% in college years and 16% in childhood. Over half of us believe life is more fun in our early 30s. It's a stage that heralds in more optimism and less stress than before (probably because we've learnt not to care so much).

Why is 30 an important age? ›

The third decade of life brings a degree of self-awareness and understanding that is difficult to capture in previous years. Armed with a deeper knowledge of who you are and what you like, you start interrogating the choices you never even thought to question before.

What is special about 30th birthday? ›

They say life begins at 30, and for good reason. Reaching this birthday milestone can feel like you're bidding farewell to a more carefree phase of your life and stepping into true adulthood…which sounds like a cause for celebration! Past milestone birthdays, such as your 21st, were probably thrown for you.

What's your 30th birthday called? ›

Meaning of milestone birthday in English

a special birthday such as your 18th, 21st, 30th, or 40th birthday: Jack was 28 in his first movie part. Now he's reaching the milestone birthday of 40.

What does dirty 30 mean for birthday? ›

Dirty 30, as we informally refer to it, is a phase and stage in life where people, especially women, are supposed to have found themselves enough to start the walk towards 40. The dirty three zero is a realisation age, unapologetically. Now let's have this interesting conversation about sex on the third floor.

What happens to your body when you turn 30? ›

Other important health challenges to be aware of in your 30s are loss of bone calcium, less elastic and regenerative skin, and possibly a shift in hormones that can cause some changes to your menstrual cycle, including the possibility of uterine fibroids.

Does life get better after 30? ›

One study found people don't feel truly happy until the age of 33, due to a combination of living in the moment and worrying less. Around 70% of those surveyed hit their happiness peak then, compared to 6% in university years and 16% in childhood. Over half of us believe life is more fun in our early 30s, it seems.

What do they say about being 30? ›

30 is just the beginning of something beautiful. Here's to the next decade of dreams and adventures. Life begins at 30. The rest was just practice.

What does the Bible say about turning 30? ›

The priests officially entered service at age 30 (Numbers 4:3). – Saul became King when he was 30 years old (1 Samuel 13:1). – David became King when he was 30 years old (2 Samuel 5:4). – Ezekiel was called by God as a prophet at age 30 (Ezekiel 1:1).

Are 30s the prime of your life? ›

In summary, there is no age at which we are best at everything – or even most things. On average, you will reach your sexual peak in your 20s, your physical peak in your 30s, your mental peak in your 40s and 50s, and you will be at your happiest and relaxed in your 60s.

Is your 30s your prime? ›

Most Americans agree that “A woman is considered to be in her prime in her 20s and 30s and maybe 40s.” However, differences exist by gender and age. Men (72%) are more likely than women (62%) to say they agree that women are in their prime from their 20s to their 40s.

What is a famous quote for 30th birthday? ›

The best 30th birthday sayings of all time: Everything I know I learned after I was thirty. ~ Georges Clemenceau I'm turning thirty this year. And you know the saying, a woman over thirty is more likely to get hit by an A bomb than find a man. ~ Fanny Fink After thirty the world becomes softer.

Is 30th birthday a big one? ›

As mentioned above 16,17, 18 and 21 are often considered milestone birthdays. After that, 30th, 40th, 50th and 60th birthdays are significant. Some people may celebrate 65th 66th or 67th birthdays as milestone birthdays, due to this being associated with 'official' retirement ages.

Is 30 the golden birthday? ›

Many people wonder exactly what age is the “golden year.” But there are actually multiple chances to celebrate. Your golden birthday is the year you turn the same age as your birthday – for example, turning 25 on the 25th, or 31 on the 31st. If you've ever wondered where the tradition comes from, you're not alone.

Is dirty 30 a thing? ›

nounSlang. a counterfeit 30-milligram oxycodone pill laced with or containing only fentanyl.

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