Facial symmetry is often pointed to as one of the chief indicators of attractiveness in males and females. But how true is that hypothesis?

Fashion photographer Alex John Beck recently decided to test the symmetrical theory of attractiveness by photographing regular people and then making symmetrical versions of each person's face, by using first the left and then the right side. 

Beck's results are definitely odd and a little disconcerting. He shared a few with us below, but you can check out the rest of his work at his website:

Beck took a portrait of each person and then divided it into the left and right side of the face. Then he mirrored each to create symmetrical portraits from each side.

For people with more naturally symmetrical faces, the effect is far more subtle.For each portrait session, he made the symmetrical version immediately so that he could show his subjects.Those with more symmetrical faces were pleased with the results.

According to Beck, in most cases, subjects looked more like a long-lost sibling than a version of him or herself.People with less symmetrical faces were less enthusiastic, even if one of the portraits looked flattering.The effect was disturbing for some.Certain features get pronounced in each portrait. This man's face and neck looks thin from his left side, but far more thick and full on the right.Beck says that they tried to maintain the structural integrity of each face because they wanted each one to look realistic.Beck declined to include the original portrait of each person because then people would focus on finding the differences between the faces. Instead, he wanted viewers to look critically at each face by itself.

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One minute Noah Cooper was jogging on the treadmill in his apartment complex's gym, the next he was passed out with an arrhythmia — a condition causing his heart to beat irregularly — while a neighbor performed CPR.

And that wasn't even the worst of it. Cooper, then 27 years old and a vice president at Bank of America Merrill Lynch, encountered severe complications during his recovery at Bellevue Hospital — and in the end, only a little known, underfunded technology at Columbia Presbyterian Hospital saved his life.

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Before last year, I was a Las Vegas virgin.

I had never walked the Strip, taken a ride on the New York New York roller coaster, or even gambled. The only things I knew about Vegas were what I had seen on TV.

I ended up having a blast: It's impossible not to in Sin City. But there were quite a few things I didn't realize about Vegas until I went.

And anyone who is a rookie at the upcoming SALT conference— the Wall Street convention that kicks off at the Bellagio May 5 — should probably know these nine things before they pack their bags and hit the Strip for the first time.

1. You can't walk everywhere

All the hotels are much farther apart than they first appear. Technically, the entire Strip is over four miles long, and it will take you at least 15 or 30 minutes to walk from your hotel to a different one, though fortunately, the Bellagio is centrally located. Before the weekend is over, you will end up taking a few cabs.

But you should walk at least part of the Strip once. There are fun elevated walkways and outdoor elevators, not to mention plenty of photo opportunities. Just don't do it in 4-inch heels (better yet — leave those heels at home).

2. You can take your drink to go

Are you headed to another club or restaurant, but you're not quite finished with your drink? Ask for a to-go cup!

Seriously — even classy establishments will let you take your drink outside as long as you use a disposable cup instead of their fancy glassware.

Oh, and once outside, you can imbibe with impunity since Vegas lets you drink (almost) everywhere.

3. Bring cash — ATMs are crazy expensive

Unless you can find your own bank's ATM, the standard fee at most Vegas ATMs is a staggering $5.99 — a charge that may not bother the high rollers, but gets really old, really fast for most of us.

If I ever go to Vegas again, I'd bring plenty of cash.

4. You can get free drinks by gambling

There are a few things Vegas casinos do to keep you gambling (no clocks, no windows, and plenty of lights and sounds), but the trick that works the best is plying customers with free drinks to keep them playing, and playing poorly.

While I'm not much of gambler, my friend told me to go sit at the bars with the gaming machines built into the counter. You stick in a $20, order a drink, and make minor bets of $.25. I played until I had won all my money back and knocked back a few glasses of wine while I was at it.

Basically, you can just drink for free (but don't forget to tip your bartender).

5. There's art all around

Most of us go to Vegas to gamble, drink, and party. But take a moment to realize there's art all around you on the Strip.

There are sculptures by famous artists behind the check-in desks, in the hotel lobbies, on the street, not to mention the fact that certain hotels like the Bellagio and The Cosmopolitan have their own galleries that display touring collections from around the world.

There's even the Picasso restaurant in the Bellagio, which is filled with sculptures, drawings, and paintings by the late artist.

6. Everyone smokes, everywhere

In Vegas, it's permissible for people to smoke inside casinos. To try and counteract that, the casinos will attempt to cover up the smell with what they call "signature scents."

The smell isn't incredibly offensive (especially if you're in a nice hotel), but if you're sensitive to cigarette smoke, you may want to stay somewhere that is non-gaming, such as the Trump International Hotel, The Signature at the MGM Grand, and Vdara Hotel & Spa.

7. The food is incredible

Almost every single Vegas hotel restaurant on the strip was phenomenal. No one thinks of Vegas as a foodie city, but from sports bars to three-star Michelin establishments, Vegas delivers.

Many of these huge hotels have fantastic relationships with seafood and produce providers, and prepare their meat and make their breads in house. Personally, I'd make the trip again just for the food.

8. Men must buy tickets (or bottles) to get into a club 

Vegas may be bachelor-party central, but no group of guys is going to get into a club without buying tickets, bottle service, or a table. Period.

I saw several groups of rejected men begging women to join their group to try and get in for free, but at the bigger clubs like XS, TAO, LAVO, and Marquee, that's just not going to happen.

Chip in together for bottle/table service, buy a ticket to a DJ show, or don't try to go to clubs. You'll just be disappointed.

Ladies, you probably won't pay for anything. Enjoy.

9. Downtown Las Vegas is far away (but worth checking out)

My friend who I traveled with was a seasoned Vegas veteran, but she had never been to downtown Vegas. Neither of us knew what to expect.

Turns out, it's nice to get away from the expensive strip and see a different side of the city. Plus, there's a Mob Museum, you can see the remnants of Old Vegas before the Strip was built (there's still gambling, too), and you can try some kitschy establishments like the Heart Attack Grill.

It's worth seeing at least once, even though it is a $30 cab ride away.

SEE ALSO: We Ate Lunch At Heart Attack Grill, The Las Vegas Burger Joint That Tries To Kill Its Customers

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Manny Pacquiao had to get creative to buy his new mansion in Beverly Hills.

In addition to paying $12.5 million for the 10,000 square-foot sprawl, Pacquiao also gave the seller four tickets to his fight against Floyd Mayweather Jr., according to Martin Rogers of USA Today. 

Tickets are priced as high as $7,500.

Pacquiao's realtor told Rogers the tickets "no doubt" helped him get the house over two other bidders.

The seven-bedroom, eight-bath mansion has a sleek, bright interior with gorgeous backyard views overlooking Beverly Hills.

The house also has an in-home theater and a beautiful back patio with a pool and lounge area.

The house is an exclusive, gated community.

The entrance is two stories high with a fountain centered in the driveway.

The entrance with a winding staircase.

We finally got our hands on an Apple Watch, and a bunch of people here at Business Insider wanted to try it out. Here's how people reacted to using the Apple Watch for the first time.

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No trip to Vegas is complete without a tour of the city's nightlife.

Whether you find yourself in Sin City for a weekend getaway, a business trip, or Skybridge Capital's upcoming SALT Conference (May 5), The Strip has no shortage of throbbing mega-clubs and swank lounges.  

For Miley Cyrus-style debauchery and flying bottle service:

Enter the MGM Grand and proceed through a passageway hidden behind a library bookcase to arrive at Beacher's Madhouse, where the aim is not to make you feel like you're at the circus, but rather that you are in the circus. Revelers are surrounded by 16 stages with naughty circus acts taking the stage (and mingling with the crowd) every 30 minutes. Little people descend from the ceiling to deliver bottle service. Miley Cyrus is a frequent visitor here. (702) 891-3577

For a modern-day Rat Pack kind of night:

If you're looking for a place to pre-game, The Barrymore is an excellent choice. Located across from Wynn in the non-gaming Royal Resort, it takes inspiration from a classic, long-shuttered MGM haunt named after actor John Barrymore. Stop by during the social hour (5-7 p.m.) and choose from seven variations on the classic martini, several barrel-aged libations, and house favorites like the rhubarb- and cognac-fueled Barrymore 75. (702) 407-5303

For a lounge-meets-mega-club experience with celebs aplenty: 

Like its sister locations in LA and New York, 1OAK Las Vegas is a celeb magnet. With its ample sofas and wraparound screens, it's often likened to a movie theater with a dance floor. It's smaller than most Vegas clubs (a capacity of 1,600 versus the usual 5,000) but there are two rooms — and if you get close enough to table 33 (aka the owner's table) you're likely to spot a Kardashian. Things start to crescendo around midnight, so arrive earlier if you want to make it in. (702) 693-8300

For a hair of the dog and a splash in the pool: 

Dayclubbing is huge in Vegas, but the pool to be in and around is at Marquee in The Cosmopolitan. The club spans 22,000 feet of mingling space and packs two pools. High rollers should seek shelter in one of the grand cabanas, each of which is outfitted with its own infinity dipping pool. Don't even think about showing up if your name isn't on the guest list. (702) 333-9000 

For a Champagne-fueled afterparty:  

Sir Elton John is one of the owners of FIZZ, the new-ish boîte on the block at Ceasars Palace. Here you can order the $2,500 Fizz Deluxe, which counts Dom Perignon rosé and cognac from the tippity top of the shelf among its ingredients. For more like 20 bucks you can sip five other Champagne-based cocktails, as well as some decadent dessert cocktails boasting flourishes like coconut purée and toasted marshmallow. (702) 776-3200

For five floors of drinking, dining, and dancing: 

Much like it's masterfully folded dumplings, Hakkasan is the perfect Vegas nightlife package. There's fine dining and dim sum on the first floor (presided over by a Michelin-starred chef), a social lounge on the second floor, and four nightlife venues between floors three and five. The main room and mezzanine are where the hard partying happens, but instead of the usual boozy club smell you'll notice a different scent in the air — Hakkasan's signature jasmine fragrance, which is pumped throughout the whole venue. (702) 891-3838

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"Small is Beautiful" focuses specifically on four individuals living in Portland, Oregon as they design and construct their own unique tiny houses in pursuit of a mortgage-free lifestyle. As the average square feet of homes in the U.S. has climbed over recent decades, several thousand households have chosen to scale down their homes to structures measuring just a few hundred square feet, with minimal possessions and often on built on wheels for easy transport.

To learn more about the film visit smallbeautifulmovie.com

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Kate Middleton, the Duchess of Cambridge, gave birth to her second child Saturday morning — an 8 pound, 3 ounce baby girl. 

This is the first picture of the new family, emerging from the hospital.

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First class can be plenty luxurious, but it's nothing like Singapore Airline's iconic Suites Class.

Travel blogger Derek Low recently cashed in his frequent flyer miles to purchase an $18,125.30 round-trip ticket in Suites Class, and thankfully he took lots of gorgeous photos of his journey.

From your own personal cabin and full-size bed to private rooms and classy meals, you've never seen a classier way to fly in style.

Note: All photos used with permission.

Boarding began at the Singapore Changi Airport First Class terminal.

Checking in is a little less crowded in First Class.

The golden ticket.

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You would think that the top of a six-story Calvin Klein ad would be difficult to tag for even the most enterprising of vandals.

But not even Kendall Jenner's innocent face is safe from a drone.

According to a Wired report, graffiti artist KATSU tagged her face on Wednesday night. 

Here's a look at one of the nicest strokes, thanks to a mysterious YouTube video. You can watch the full version below. 

Back in January, KATSU drew press attention when he showed off a portrait of Facebook founder Mark Zuckerberg created with his own feces.

The billboard features former "Keeping Up with the Kardashians" star and Kardashian sister Kendall Jenner. Part of the #mycalvins campaign, the ad went up earlier in April to replace a possibly photoshopped Justin Bieber.

The Bieber ad got egged. 

The drone is way more clever.

Given that the six-story billboard stands at the ultra-busy Houston and Broadway intersection, the result is pretty epic. 

Here's the landscape view.

And the close-up.

Drones are most often used to monitor crops, take photos, or shoot missiles. 

But here one is joyfully buzzing across a celebrity's face. 

“It turned out surprisingly well,” KATSU told Wired. "It's exciting to see its first potential use as a device for vandalism." 

The sixty-second tag was super tense. 

"Seventy percent of the concentration is in maintaining this equilibrium with the two dimensional surface while you are painting," the artist said. 

This is only the beginning of drone-based street art. KATSU explained that the Calvin Klein tag was a proof of concept — he'll be releasing a more user-friendly version of the graffiti drone "very soon," he says. 

The video:

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Two lawyers in Washington, DC, were fed up with having to be "on" all the time at the firms where they worked. So they started their own.

Maria Simon and Rebecca Gellar are partners at the Gellar Law Group, which Noam Scheiber profiled in the New York Times.

They work 60-70 hour weeks, but they often work from home, have no permanent office space, take afternoons off to go to their children's school events, and generally experiment with what it means to have a flexible work schedule in a notoriously demanding, client-focused profession.

Ironically, starting a small firm so that it could have family-friendly practices made it harder to be family-friendly in some ways. With only two lawyers, it's hard to make ends meet when one takes time off: 

Large firms have the resources to accommodate lawyers’ family obligations. They just aren’t very hospitable in practice. Nationwide, 98 percent of law firms officially allow their lawyers to work reduced schedules, according to the National Association for Law Placement; only 6 percent of lawyers actually work part time. By contrast, many small firms have the right inclinations but lack the resources to follow through.

But the two make it work, Scheiber writes. Their rates are reasonable (for lawyers), and they make enough money, if only half of what they might at a big firm.

The conclusion of the article is powerful, particularly for those of us who spend a lot of time thinking about families can fit into American working life.

It’s a contemporary daydream to wonder what the workplace might look like if it were run entirely by women, or at least by fully engaged parents. The answer, it seems, is this: There would be no revolution. Working parents would still be exhausted and distracted and anxious about falling short in every aspect of their lives. Ms. Simon says she sleeps fewer than six hours most nights, and she is frequently awakened after nodding off by the impact of her Kindle on her forehead. But it would help at the margins. And the margins are very likely to be the difference between an impossible combination of professional ambition and parental devotion and a manageable one, if only barely so.  

It's possible that all we really need is change at the margins.

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Scott Keyes is an expert when it comes to getting the best possible price for airline tickets.

The reporter for Think Progress and author of the e-books “How To Fly For Free” and “How To Find Cheap Flights" is so good at it that he has planned a world trip that will take him more than 20,000 miles to 13 countries, all for free.

When Business Insider spoke with Keyes, he said one of his favorite hacks for getting cheap flights was taking advantage of "throwaway tickets," something that many fliers have never even heard of before.

“This one can be a huge money saver,” Keyes told us about his favorite throwaway ticket website Skiplagged. “You just have to know how to use it.”

For those who don’t know, throwaway tickets — also known as "hidden city" or "point beyond" tickets — are flights you purchase to an unpopular destination.

Say you were trying to buy a ticket from New York to Chicago. Because of demand, these tickets will be much more expensive than flying from New York to Milwaukee, for instance.

A throwaway ticket would be if you found a flight to Milwaukee with a layover in Chicago. Then instead of getting on the plane to go to Milwaukee, you would throw away that leg of the ticket and exit the Chicago airport.

"The only thing that people need to know about Skiplagged is just making sure they understand how to approach it," Keyes said. "Never buy a round-trip, because once you skip a leg of your trip the rest of your itinerary cancels. You also can't check any bags since they'll arrive at the throwaway city and not your actual destination."

With that in mind, Skiplagged can find you some much cheaper airfare, especially if the city you're visiting is a major thoroughfare such as New York, Chicago, or London.

This hack can save people hundreds of dollars, but is highly frowned upon by the airline industry. The website is currently being sued by both United and Orbitz, and now links out to third-party websites where you can purchase the airfare.

"Skiplagged's sole purpose has always been to help you become savvy travelers," Skiplagged founder and computer whiz Aktarer Zaman explained on the GoFundMe website he created to raise money to battle the lawsuit. "Unfortunately, we have been doing too good of a job so United Airlines and a big travel partner teamed up with a lawsuit to get in the way. Everything Skiplagged has done and continues to do is legal, but the only way to effectively prove this is with lawyers."

Airlines, for their part, compare the practice to switching prices on goods sold in a store. Here's a sample letter American Airlines will send to its fliers explaining why the ticket pricing is structured differently for certain cities:

"Because we compete with other airlines with different route structures, we sometimes find it necessary to give a traveler who is traveling beyond a connecting point a better price than travelers who are just traveling to the connecting point. For example, a passenger who is traveling to Austin, Texas from Los Angeles can go on one airline via Phoenix for a price that is lower than the cost of traveling on American between Los Angeles and Dallas. If we want to offer the same price to Austin as the other airline, but the only way we can get travelers there is via Dallas, we find ourselves charging the Austin passengers less than the Dallas passengers."

It's also worth noting that passengers who are caught by major airlines for abusing throwaway ticketing may receive a written warning from the airline, be denied boarding, have their ticket confiscated, or be fined for the difference between the price they paid and the lowest applicable fare.

If you're caught, don't lie about what you're doing — this could result in a fraud charge— but be honest and remember that though the airlines hate it (a lot), these tickets are not illegal.

Ultimately, throwaway ticketing can be a useful approach to finding a decent fare if you’re trying to save some money and are flying to a major thoroughfare such as Chicago, New York, London, Paris, or other major destinations with international airports.

For more of Scott Keyes’s travel tips and advice, check out his e-books “How To Fly For Free” and “How To Find Cheap Flights.”

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Writing a dating profile is much like writing an article or a novel — if I haven't grabbed you by now, you've already swiped left and clicked to the next best thing to read. 

On Saturday, author and editor Dave Eggers helped San Franciscans increase their chances of a lifelong match by editing their online dating profiles at a National Independent Bookstore Day event at Books Inc. in the Castro district.

Eggers became famous with his 2000 autobiography, "A Heartbreaking Work of Staggering Genius," and in 2013 wrote "The Circle," a dystopian novel based loosely on life at Silicon Valley tech companies like Google and Facebook. 

Eggers wouldn't let Business Insider sit in on the editing, but we spoke to a few attendees about what Eggers said they should do. Here's what he told them:

Be specific. One attendee had "Eating and drinking with friends" listed as some of her favorite activities. Eggers suggested that she list a restaurant where someone could find her, or a specific cocktail at a bar, as a better conversation starter.

Make sure it's congruent. If you list consuming cocktails as an activity but then say in response to "what's your ideal Friday night?" that you actually prefer Saturday mornings, you may be sending mixed signals, as Eggers pointed out to one person. And you probably don't want to be sending mixed signals to someone before you even start dating them.

End on a "Zing." If you have a joke, save it to be the last part of the answer so that's what people remember. And if the last question is "why you should message me," make sure you sound inviting so people want to message you.

Be honest with what is a cliché (and try to avoid them). "Recognize when you're repeating something that you've heard," said Dan, one of the attendees, and then try to eliminate it from your profile. Don't say you like comedy or like to laugh. Show it. 

Make your self-summary feel like the first line of a novel. It needs to be the "hook." The "about" section is where you can sound most generic, Eggers told Dan, so make sure you hook people in like you would in a book. Don't have them glaze over the section about who you are because it reads like everyone else's. 

SEE ALSO: Meet the San Francisco dating coach who earns up to $20,000 a month teaching introverted men how to be successful with women

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A new report out on Manhattan real estate confirms what we all know: NYC real estate is expensive.

The New Development Report by real estate listings and insights website CityRealty details trends in one of the world's priciest markets.

According to the report, prices are shooting up — but the number of units selling is falling.

“Compared to the last building boom, buildings are offering bigger apartments and fewer of them," director of research and communications for CityRealty Gabby Warshawer said.

In fact, only five developments will contribute over $10 billion in new sales. This will account for a third of the $30 billion projected sales into 2019, according to the report.

Unfortunately, there's no relief in sight for those seeking more modestly priced New York apartments. 

Going hand-in-hand with the former trend is the new trend of the widening gulf between new multi-million dollar apartments and the broader market. CityRealty reports that price per square foot in Manhattan has doubled between 2013 and 2015. In addition, the average price of new-to-the-market apartments is also expected to reach $5.9 million in 2015 – double the citywide average.

"The prices that are coming in for these limited new units are astronomical even for New York, and we don’t expect that to let up in the next five years," Warshawer said.

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