Superstitions that still make us knock on wood

Ten common superstitions and their surprising origins

We're rational adults living in the 21st century. We have smartphones, streaming services, and GPS navigation. Yet somehow, when a black cat crosses our path, we still feel that little twinge of "uh oh." Let's explore ten classic superstitions that continue to haunt (and amuse) us today.

Image: Savannah B.

Drop a mirror and watch it shatter? Congratulations, you've just signed yourself up for seven years of misfortune—or so the superstition claims. This belief dates back to ancient times when mirrors were rare, expensive, and thought to reflect your soul. Breaking one meant damaging your very essence, which would take seven years to "regenerate." That's quite the warranty period for your spiritual well-being.

Image: Jilbert Ebrahimi

See a ladder propped against a building? Better walk around it unless you want bad luck following you home. This superstition actually has some practical roots—walking under a ladder is genuinely dangerous since paint cans, tools, or clumsy workers could fall on your head. But the mystical explanation is even more interesting: a ladder against a wall forms a triangle, which represents the Holy Trinity, and walking through it was considered a sign of disrespect to the divine.

Image: Kristin O Karlsen

In medieval Europe, these sleek felines were associated with witches and dark magic, making them the least popular pet choice for the superstitious. Cross paths with one, and you were supposedly inviting misfortune into your life. Never mind that black cats are just regular cats with darker fur—superstition doesn’t care about logic.

Ironically, in some cultures, black cats are considered good luck, which must be very confusing for the cats themselves. Are they harbingers of doom or furry little fortune cookies? It all depends on which side of the ocean you're standing on.

Image: Ryoji Iwata

Popping open an umbrella inside the house is a big no-no in the superstition handbook. The origins of this belief are a bit murky, but one theory suggests it offended the sun god to use a shade-providing device indoors, where the sun doesn't shine anyway. Another explanation is more practical: early umbrellas had stiff springs and metal spokes that could genuinely hurt someone or knock over valuables when opened in tight spaces.

Image: K Adams

Say something good about yourself—"I haven't been sick all year"—and watch yourself immediately reach for the nearest wooden surface. The ritual supposedly prevents your boastful words from jinxing you and attracting bad luck's attention. Its origins trace back to ancient tree-worshipping cultures that believed spirits lived in wood and could offer protection if properly acknowledged.

The best part about this superstition is how flexible it is. Can't find real wood? Knock on your head (insert your own joke here). Some people tap twice, others three times—there's no official protocol, which is refreshing in the otherwise rigid world of superstitions.

Image: Nik

This superstition combines two separate fears: Friday was considered unlucky because it was the day of Jesus’s crucifixion, and the number 13 has been deemed unlucky for various reasons, including being one more than the "perfect" dozen. Put them together, and you’ve got a day so notorious it inspired an entire horror movie franchise.

The funny thing is, there’s no statistical evidence that more bad things happen on Friday the 13th than on any other day. Yet hotels often skip the 13th floor (jumping from 12 to 14), and some airlines avoid having a 13th row.

Image: ekaterina shishina

Knock over the salt shaker at dinner, and tradition demands that you immediately toss a pinch over your left shoulder. Why? Because the devil was supposedly lurking behind your left shoulder, waiting to cause mischief, and throwing salt in his eyes would temporarily blind him. Salt was once incredibly valuable—Roman soldiers were even paid in salt, giving us the word "salary"—so spilling it was genuinely wasteful and considered an invitation for bad luck.

Image: Roman Manshin

"Find a penny, pick it up, and all day long you'll have good luck"—but only if it's heads up. If it's tails up, some versions say you should flip it over for the next person or leave it alone entirely. This is one of the more optimistic superstitions, suggesting the universe occasionally scatters small fortunes in our path. Given that a penny is worth one cent, the universe isn't exactly being generous, but it's the thought that counts.

Image: Towfiqu barbhuiya

When someone sneezes, we automatically say "bless you" or "gesundheit" without really thinking about why. The tradition supposedly started because people believed your soul could escape through your nose during a sneeze, or that the sneeze temporarily stopped your heart, leaving you vulnerable to evil spirits. By blessing the person who sneezed, you were offering spiritual protection during this brief moment of weakness. It's surprisingly dramatic for such a common bodily function.

Image: Toni Reed

Ever notice how someone playing poker, bowling, or trying any new activity for the first time often experiences unexplainable success? That's beginner's luck, the superstition that newcomers are temporarily blessed with good fortune, perhaps because fate wants to encourage them to keep trying. It's a convenient explanation for why your friend, who's never bowled before, just rolled a strike while you, the experienced bowler, keep hitting the gutter.

Of course, there are practical explanations: beginners aren't overthinking their moves, aren't burdened by bad habits, and aren't feeling pressure to perform. But where's the fun in that? It's much more entertaining to blame supernatural forces for our defeats.

The 12 longest-living animals on Earth (and how they cheat time)

Nature doesn’t just create beauty, it crafts survival miracles. While most animals have short lives, a rare few have mastered the art of staying alive for centuries, even millennia. These aren’t just long-lived creatures; they’re nature’s ultimate time travelers. From the frozen depths of the oceans to the darkest corners underground, they’ve developed bizarre, brilliant strategies to cheat death. Get ready to meet 12 animals whose lifespans will absolutely blow your mind.

Record age: up to 15,000 years

This unassuming sea sponge thrives in the freezing waters of Antarctica, where temperatures hover around 28.6 °F—so cold that biological processes hit the brakes. In such icy conditions, metabolism slows to a crawl, allowing these sponges to live for thousands of years.

Some have reached impressive sizes of over 3 feet tall and have been around since mammoths were still thundering across the tundra. They don’t move, they don’t stress, and they barely change, just quietly existing while centuries pass them by. Their secret to extreme longevity? Glacial patience, deep-sea stillness, and a lifestyle that redefines "low-maintenance".

Age: technically… infinite

This tiny jellyfish, no bigger than a fingernail—less than 0.2 inches—is like the ocean’s very own Benjamin Button. What makes it truly extraordinary is its ability to rewind its life story, flipping back to a youthful, juvenile stage whenever it wants. While it’s not completely invincible (predators and other threats are still very real), if left undisturbed, it can keep hitting the reset button on aging indefinitely, making it one of the most fascinating "time-benders" in nature.

Record age: 507 years

In 2006, a special clam was discovered buried deep in the seabeds of the North Atlantic. Scientists were able to determine that it had been there since at least 1499—that’s centuries before the United States was even a thought! This ancient marvel, nicknamed "Ming", was able to perfect a slow-and-steady approach to life. Growing at a snail’s pace and barely budging, Ming’s sedentary lifestyle turned out to be a brilliant strategy for beating the clock. Who knew doing almost nothing could be the ultimate secret to longevity?

Record age: estimated 392 years

These sharks aren’t your average ocean cruisers—they can stretch over 20 feet long and weigh up to 2,200 pounds. But what’s really mindblowing is how slowly they move, like they’re in a permanent state of deep relaxation. Living in the icy Arctic waters, these giants don’t hit adulthood until they’re about 150 years old, and some can glide through the depths for nearly 400 years. Imagine that! These ancient swimmers were already around before America declared independence... and they are still out there, silently roaming the seas!

Record age: over 211 years

This whale is a true ocean giant, stretching up to 60 feet long and weighing a staggering 200,000 pounds. But what makes it stand out isn’t just its size but its age. Some of these majestic creatures carry harpoons from the 1800s still lodged in their skin, like walking history books. Just picture living so long that you’re literally carrying outdated technology embedded in your body—talk about being a time traveler of the seas!

Record age: 200 years

Spanning the chilly Pacific coastline from California all the way up to Alaska, this spiky little ball—about 7 inches across—is full of surprises. It munches on algae and calls the deep, dark ocean its home, thriving at depths of up to 300 feet. Don’t let its size fool you: this prickly creature is a true elder of the cold seas, quietly outliving many ocean neighbors while keeping a low profile. A tough, slow-living veteran wrapped in spikes!

Record age: 226 years

Meet Hanako, a legendary Japanese koi who swam through life for an astonishing 226 years. Scientists discovered how old she was by studying the rings on her scales, much like counting the growth rings of a tree. These colorful, ornamental fish aren’t just symbols of good fortune; they’re also secret long-lifers with the potential to celebrate over two centuries of birthdays, as long as they get the right care and a peaceful pond to call home.

Record age: 190 years

Jonathan is a male tortoise living on the remote island of Saint Helena in the South Atlantic Ocean. He was born back in 1832, and he’s still happily chomping lettuce and soaking up the sun today. Weighing in at more than 400 pounds and measuring around 3 feet long, Jonathan holds the title of the oldest known living land animal on the planet. If he could share tales, they’d span nearly two centuries of history. Imagine that!

Record age: 152 years

This ancient-looking fish, with its whisker-like barbels, looking like a tiny underwater submarine, prowls the lakes of North America. It can reach an impressive length of up to 7 feet and weigh around 200 pounds. These slow-living creatures don’t rush into adulthood—they start breeding only around age 20—and then take their time cruising through life at a leisurely pace. Believe it or not, one legendary catch in Wisconsin was estimated to be over 150 years old!

Record age: over 90 years

This chunky, night-loving parrot from New Zealand is a true oddball—it can’t fly, snores like a grumpy grandpa, and smells like fresh flowers. Despite its quirks, this bird boasts an impressively long lifespan. Sadly, it teeters on the edge of extinction. The oldest known kakapo, affectionately named Richard Henry, lived 90 years, earning him the title of the charmingly eccentric elder statesman of the avian world.

Record age: 37 years

This tiny, kooky rodent—barely 3 inches long and just over an ounce in weight—could’ve been cast straight from a sci-fi apocalypse flick. Dwelling in vast underground colonies across Africa, it’s practically invincible to cancer, pain, and the usual effects of aging. Scientists are fascinated by this little marvel, even if it’s not winning beauty contests anytime soon. Its superpowers make it a star in longevity research!

Record age: estimated 100+ years

Lobsters have a totally different rulebook than us when it comes to aging. They don’t really grow old; they just keep getting bigger and bigger. Some giant lobsters weigh over 40 pounds and stretch beyond 3 feet long. Their biggest threats? Not old age, but predators or the risky process of shedding their shells. In theory, they could live forever if left alone—but let’s be honest, not many get to enjoy a peaceful, lobster-sized retirement!