Opposites may attract, but when it comes to choosing your spouse, you're more likely to pick someone who has similar personality traits. That's according to a team of researchers who've determined that old married couples who seem eerily similar in their mannerisms started out that way, rather than adopting parts of their partner's personality over time.

"Existing research shows that spouses are more similar than random people," lead author Mikhila Humbad of Michigan State University said in a statement. "This could reflect spouses' influence on each other over time, or this could be what attracted them to each other in the first place." Her investigation, which analyzed data from over 1,200 couples who had been married for an average of 19.5 years, showed one clear message: amazingly, even two decades of marriage can't cause individual personality traits to shift. Rather, any similarities were there to begin with.

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Feeling a bit un-challenged by your same old running routine? Here are some affordable gadgets that will help take your jogs to the next level.

Get awesome glutes -- Shape your backside with these creative variations on the traditional lunge.

How much you weigh matters, but where you carry that weight also matters -- research suggests that people who carry a certain kind of fat will have a harder time losing it than anyone else.

Don't let achy joints keep you from working out -- As Health.com points out, a bit of sweat can really help you manage the pain.

Looking on the bright side isn't so easy -- or is it? Here are some easy tips on how to become a "glass half-full" kind of person.

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What's good for the earth is good for you -- seriously! Divine lists a few ways that going green can help your health.

Got goosebumps? It might not be a sign of chills -- As it turns out, these tiny bumps can actually be a surprising indicator of stress.

Addicted to your job? Here are some reasons it's crucial to unplug every now and then.

Weight gain isn't just a symptom of middle age -- sometimes it happens to people in their 20s too! If this is happening to you, here are some things you can do about it.

Feeling uninspired? Take a healthy hint from Jill Hennessy -- she turns to long runs when she needs a mood, energy and creativity boost.

Each morning, we dish out a few links we love.

You're right -- a few drinks won't kill you. Research shows that heavy drinkers tend to live longer than teetotalers.

Bad breath isn't just embarrassing -- it can be a sign of serious health problems. Here are some inside clues as to what your breath means.

Just can't quit the cancer sticks? At the very least, load up on greens -- studies show that while quitting smoking is optimal, eating more produce can help reduce your health risks.

Before you send your little one back to school, make sure to ask yourself this very important question: Is his or her backpack too heavy? If it is, it can damage them for life.

Need a boost in the morning? Forget unhealthy -- and often expensive -- coffee shop muffins. Here's a recipe for vegan muffins that will hit the spot and keep you going all day.

We've all been there -- after a stressful period at work, a fight with a friend or a bad break-up, we reach for the Oreos and ice cream and deep dish pizza, all while promising to eat better once we're feeling normal again. If we work out and eat healthy foods after a few weeks of bingeing, it's OK, right?

Wrong. A new study shows that what goes into our lips really does stay a lifetime on our hips. When it comes to unhealthy eating, "even short-term behavioural changes may have prolonged effects on health," Asa Ernersson, the key author on the study, told the BBC. Ouch.

The research, done at Sweden's Linkoping University, showed that people who binged on fast food for four to six weeks gained an average of 14 pounds and kept it on for over two years. During the study, the 18 adult participants were limited to 5,000 steps or less per day while increasing their consumption of energy-dense foods by 70 percent. So it's not surprising that they gained the weight.

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Love beer? What kind you drink matters -- here's how your choice of brew can put you at risk for a painful skin condition.

Vitamins may be important, but don't be fooled into thinking that all supplements are safe. Watch out for these 12 most dangerous supplements.

Some people are born to be runners, but if you're not, don't panic. Fit Bottomed Girls lists easy ways anyone can become a runner ... and love it.

If you're looking for a natural treatment for depression, look no further than your local yoga studio -- studies show that a few downward dogs can prevent depression.

Want to protect your children from obesity? It's easy -- make them walk to school, if you can.

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Not convinced that yoga will change your life? Experts agree -- getting flexible is just as important as working out with weights or cardio machines.

It only takes five minutes to prevent weight gain, as long as you spend those minutes wisely. Just a short amount of time doing this fabulous exercise will help you ward off that extra weight.

"Hot romance" isn't just a clever saying -- research shows that being close to people makes you feel warm and fuzzy, literally!

Are blaring tunes an essential part of your workout? Music might not have as big of an impact as you may think.

Ladies, listen up -- if you think you might have a little problem down there, see you doctor. Here's why self-treating a yeast infection can have disastrous results.

If your next vacation includes a stay in a hotel, you might get something more than just a mint on your pillow: a deadly serving of bacteria lurking in your bathroom. Sampling done by Health Canada has found that some brands of popular hotel shampoos are contaminated with harmful bacteria. The brands in question are the "Ora" and "Lilac" conditioning shampoos, and while Health Canada isn't dishing names, both are provided in popular hotels and motels across Canada.

To be more specific, officials found bacteria klebsiella oxytoca and serratia liquefaciens in the brands, but if those long titles make no sense to you, just know this: They're not good for you. They can cause infections and even death if you're not careful. Of course, you're probably not drinking the shampoo, but it's still best to stay far away.

It's not just contaminated toiletries you need to look out for, either. Hotels have come under fire for health issues a lot in the last few years. In 2007, an undercover investigation discovered that many hotels don't wash their drinking glasses. Yuck. And a University of Virginia study found that common cold germs tend to stick around in hotel rooms long after a sick guest has checked out -- potentially giving future guests the sniffles too.

Each morning, we dish out a few links we love.

Going out this weekend? Yes, pubs and bars are full of fried food and calorific drinks, but don't let that stop you from having a good time -- enjoy these healthy bar snacks with gusto, including one surprising superfood!

She's 45 and she probably looks better than any of us ever will (well, unless Heidi Klum is reading this right now.) So how does Liz Hurley do it? The hot mama recently admitted her quintessential diet secret -- she skips breakfast in favour of calorie-free hot drinks.

If you're suffering from nausea or dizziness when you work out, listen up -- here's what causes these unpleasant side effects, as well as what to do about them. And no, quitting exercise isn't an option.

You love using it to keep up with your favourite trashy celebs, but can Twitter be put to a better use such as helping you lose weight? One guy shed 70 pounds through tweets!

Ever wondered why your ears pop when you fly, drive through the mountains or ride in an elevator? Here's everything you ever wanted to know about ear pressure.

When you start dating someone new, how long should you wait before hopping into bed? While generations before us have generally accepted that sex on the first date is taboo, lately the lines seem a bit blurred -- we're still driven by the "take it slow" mantras of our parents, but we're also heavily influenced by the liberated Samantha Jones-types who figure that sex is no big deal. Does it matter when you sleep with someone? Is there any point in waiting?

Maybe, according to recent studies on relationships. In surveys of nearly 700 heterosexual adults done by Anthony Paik and colleagues from the University of Iowa, they found that people who held off on jumping into bed right away had a better connection with their partner. "There's something about the characteristics of people who wait before sex that is linked to higher-quality relationships," Paik told Reuters.

The researchers found that 56 percent of people who waited to have sex reported having a high quality relationship, compared to 27 percent for people who'd slept with someone while dating casually. Think having a "friend with benefits" is the way to go? Only 17 percent claimed to have quality relationships when having sex in a non-romantic relationship.