The Best Way to Shower, According to Experts

iStock.com/skynesher
iStock.com/skynesher

Of all the necessities involved in personal hygiene, showering would appear to be the least challenging task. You stand under a water spray, lather up, and let your body’s accumulated bacteria go down the drain. If you feel like fiddling with the temperature, hot showers are said to “open your pores.” Cold showers are alleged to make you more alert. Tolerating either extreme is a sign of attrition. Throw in a loofah scrub and you’re good.

But what if we’ve been showering all wrong? What if there is an objectively correct way to get clean that contradicts much of what we’ve learned about bathing through observation and cartoons?

THE DIRTY TRUTH ABOUT GETTING CLEAN

A man lathers up in the shower
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If you’re lathering yourself up from head to toe, you’re doing it wrong, according to Rajani Katta, MD, clinical professor of dermatology at the McGovern Medical School at UTHealth in Houston and author of Glow: The Dermatologist's Guide to a Whole Food Younger Skin Diet. “Generally speaking, you don’t need soap all over your body unless you’ve gotten really sweaty,” she tells Mental Floss. A thorough lathering isn’t going to hurt you, exactly, but soap and hot water strip away the skin’s natural oils, drying it out and causing irritation, discomfort, or even infection. Instead, Katta says, soap “should go under your arms, around your private parts, and wherever there’s a skin fold,” which harbor greater numbers of bacteria. (Go in whatever order you like: Katta says it doesn't matter.)

As for those long, hot showers that feel particularly good after a stressful day or during the winter: While they might be psychologically beneficial, they’re not doing your epidermis much good. If water is too cold or too warm, the cells and lipids that make up our skin barrier can develop reactions. (Let too-warm water blast you in the forearm for a minute and you’ll likely see it turn red.) “Temperature extremes, whether too cold or too hot, can cause skin irritation and inflammation,” Katta says. “Ideally, you’ll want to use lukewarm temperatures and limit showers to no more than 10 or 15 minutes.” The idea is to cleanse, not antagonize, the tissue.

According to Katta, shower frequency shouldn’t weigh too heavily on your mind. If you’re breaking a daily sweat owing to work or fitness, it’s a good idea to shower daily. Otherwise, and unless your dermatologist has advised differently due to a skin condition, showering multiple times weekly is sufficient.

THE SCIENCE OF SCRUBBING

A woman uses a bar of soap in the shower
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“Body washes have kind of taken over the world,” Katta says. “It’s interesting that my younger patients all seem to use body wash while older patients tend to gravitate toward bar soaps.”

In this case, older means wiser. According to Katta, body washes have more water content that bar soaps, which means they use more preservatives and other additives to prevent or inhibit mold and bacteria growth. In some cases, those ingredients can prompt allergic reactions. If you’ve ever used a wash and then found your skin irritated, that’s probably why. “Bar soaps tend to have less [additives],” Katta says. If a wash is gentle on your skin, it’s fine to use it, but don’t discount the standard soap chunk.

(And no, bar soap does not make it more likely you’ll transmit bacteria with repeated use. Two often-cited studies in 1965 and 1988 concluded bars contaminated with staph, E. coli, and other not-so-pleasant pathogens did not pass along the germs in subsequent handling. In its guidelines for handwashing, the Centers for Disease Control and Prevention considers hand and liquid soap to be of equal efficacy.)

Don’t bother with loofahs or washcloths. While it’s not terribly likely they could harbor bacteria, they’re no more effective at dispersing soap than your fingertips, and it’s possible people with sensitive skin could find them irritating.

Once you get to your head, Katta says that shampooing is a highly individual practice that doesn’t invite objective advice. Use whatever products you like. If you have dandruff, you might want to shampoo more frequently. You can even wash your hair first thing, before the rest of your body. The only practice you want to time out is shaving: Later in the shower is better, since the warm water has had time to soften hair follicles and reduce chances of skin irritation. Immediately after showering is also a good time to clip any Howard Hughes-esque nail overgrowth.

KEEP YOUR HEAD MOIST

A dog poses while wrapped in a towel
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The most important part of a shower has nothing to do with the shower. It’s about not letting your skin lose its moisture. Don't rub yourself completely dry: Instead, pat yourself with a towel so you remain slightly damp and then immediately apply a moisturizer to take advantage of your post-shower skin hydration.

Katta doesn’t recommend a specific brand of moisturizer, but says that thicker formulations are best. For that reason, try not to opt for anything that comes in a pump bottle. “Anything in a bottle has a high amount of water and may not lock moisture into the skin well,” she says. “Look for a cream-based formulation or ointment in a tube.” Petroleum jelly reduces moisture evaporation from skin; other ingredients like dimethicone, ceramides, hyaluronic acid, and glycerin can help lock in moisture.

If you’re wary about feeling like a greasy mess just before you leave the house, you can switch to a nightly showering routine. That way, Katta says, you can lube up without getting it on your work clothes.

Now you’re all clean. For information on how to keep your fanny sparkling, check out the best way to wipe.

Divers Swim With What Could Be the Biggest Great White Shark Ever Filmed

iStock.com/RamonCarretero
iStock.com/RamonCarretero

New pictures and video taken by divers show what could possibly be the largest great white shark ever caught on camera, CNN Travel reports.

Deep Blue, a 50-plus-year-old great white first documented 20 years ago, was spotted off the coast of Hawaii recently in a rare close encounter. Divers were filming tiger sharks feeding on a sperm whale carcass south of Oahu when Deep Blue swam up and began scratching herself on their boat. They accompanied the shark in the water for the rest of the day, even getting close enough to touch her at times.


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"She swam away escorted by two rough-toothed dolphins who danced around her over to one of my [...] shark research vessels and proceeded to use it as a scratching post, passing up feeding for another need," Ocean Ramsey, one of the divers, wrote in an Instagram post.


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Deep Blue is roughly 20 feet long and weighs an estimated 2 tons—likely making her one of the largest great whites alive. (The record for biggest great white shark ever is often disputed, with some outlets listing an alleged 37-foot shark recorded in the 1930s as the record-holder.)

Deep Blue looks especially wide in these photos, leading some to suspect she's pregnant. Swimming so close to great whites is always dangerous, especially when they're feeding, but older, pregnant females tend to be more docile.

Though great white sharks are the largest predatory sharks in the ocean, sharks of Deep Blue's size are seldom seen, and they're filmed alive even less often, making this a remarkable occurrence.

[h/t CNN Travel]

The Psychology Behind Kids' L.O.L. Surprise! Doll Obsession

Jack Taylor, Getty Images
Jack Taylor, Getty Images

Isaac Larian, the founder and CEO of toymaker MGA Entertainment, is an insomniac. Fortunately for him, that inability to sleep forced him to get up out of bed one night—a move that ended up being worth $4 billion.

Larian’s company is the architect of L.O.L. Surprise!, a line of dolls with a clever conceit. The product, which retails for about $10 to $20, is encased in a ball-shaped plastic shell and buried under layers of packaging, forcing children to tear through a gauntlet of wrapping before they’re able to see it. The inspiration came on that highly profitable sleepless night, which Larian spent watching unboxing videos on YouTube. It resulted in the first toy made for a generation wired for delayed gratification.

The dolls first went on sale in test markets at select Target stores in late 2016. MGA shipped out 500,000 of them, all of which sold out within two months. A Cabbage Patch Kid-esque frenzy came the following year. By late 2018, L.O.L. Surprise! (the acronym stands for the fancifully redundant Little Outrageous Little) had moved 800 million units, accounted for seven of the top 10 toys sold in the U.S., and was named Toy of the Year by the Toy Association. Videos of kids and adults unboxing them garner millions of views on YouTube, which is precisely where Larian knew his marketing would be most effective.

A woman holds a L.O.L. Surprise doll and packaging in her hand
Cindy Ord, Getty Images for MGA Entertainment

The dolls themselves are nothing revolutionary. Once freed from their plastic prisons, they stare at their owner with doe-eyed expressions. Some “tinkle,” while others change color in water. They can be dressed in accessories found in the balls or paired with tiny pets (which also must be "unboxed"). Larger bundles, like last year’s $89.99 L.O.L. Bigger Surprise! capsule, feature a plethora of items, each individually wrapped. It took a writer from The New York Times 59 minutes to uncover everything inside.

This methodical excavation is what makes L.O.L. Surprise! so appealing to its pint-sized target audience. Though MGA was advised that kids wouldn’t want to buy something they couldn’t see, Larian and his executives had an instinctual understanding of what child development experts already knew: Kids like looking forward to things.

Dr. Rachel Barr, director of Georgetown University’s Early Learning Project, told The Atlantic that unboxing videos tickle the part of a child’s brain that enjoys anticipation. By age 4 or 5, they have a concept of “the future,” or events that will unfold somewhere other than the present. However, Barr said, they’re also wary of being scared by an unforeseen outcome. In an unboxing video, they know the payoff will be positive and not, say, a live tarantula.

L.O.L. Surprise! is engineered to prolong that anticipatory joy, with kids peeling away wrapping like an onion for up to 20 minutes at a time. The effect is not entirely novel—baseball card collectors have been buying and unwrapping card packs without knowing exactly what’s inside for decades—but paired with social media, MGA was able to strike oil. The dolls now have 350 licensees making everything from bed sheets to apparel. Collectors—or their parents—can buy a $199.99 doll house. So-called “boy toys” are now lurking inside the wrappers, with one, the mohawk-sporting Punk Boi, causing a mild stir for being what MGA calls “anatomically correct.” His tiny plastic genital area facilitates a peeing function.

Whether L.O.L. Surprise! bucks conventional toy trends and continues its popularity beyond a handful of holiday seasons remains to be seen. Already, MGA is pushing alternative products like Poopsie Slime Surprise, a unicorn that can be fed glitter and poops a viscous green slime. An official unboxing video has been viewed 4.2 million times and counting.

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