Workout as you work.It's so hard to find the motivation to hit the gym after work. But, a new study shows you can get in your workout while you're at still at work. We asked ACE Certified Advanced Personal Trainer Renita Brannan to give us a few at-work exercises that torch calories without ever leaving your cube.

By Meagan Morris

1. Seated Strong Woman
Stretch your spine and work your core with this simple desk chair move. First, pull your body away from the chair back so you're sitting with a long spine. Then, take 10 deep breaths. With each exhale, pull your belly "in" to your back, like you would during a crunch. You'll feel totally relaxed afterward.

Estimated calories burned: 15.

2. Chair Squats
This one takes a steady chair-and some strong core work-to pull off. Sit on the edge of your chair with your arms either in front of you or above your head. Pull your body up to standing position and slowly inhale as you lower your buns toward the chair. Gently touch the seat with your rear and stand

Taylor Swift covers Vanity Fair's March issue. (Photo: Vanity Fair)Taylor Swift has some strong opinions about her ex-boyfriends. But she's also got some feelings about her fellow female celebrity peers. 

In a web excerpt from the latest issue of Vanity Fair, she appears to take issue with two of TV's most beloved female comics.  

Here's the excerpt of the article: “You know, Katie Couric is one of my favorite people,” Taylor Swift tells Vanity Fair contributing editor Nancy Jo Sales on the subject of mean girls in general and in response to an incident at this year’s Golden Globes, where Amy Poehler and Tina Fey mocked her highly scrutinized love life. “Because she said to me she had heard a quote that she loved, that said, ‘There’s a special place in hell for women who don’t help other women.’”

Is this a dis (as Salon suggests) or an out-of-context quote sparking made-up lady feuds? It's hard to know. But here's what we could trace: the origin of this so-called "incident."

It turns out that Fey already made an apology. The Golden Globes were a

Manns is honoring Booth (inset) with good deeds. Photo courtesy of Samantha Manns.An Ohio teen, grieving over the February death of her 89-year-old great-grandmother, has begun an incredible quest in her memory: to perform 89 random acts of kindness for total strangers over the next 18 months.    

More on Shine: 6 Good Deeds that Could Change Your Life

“Some of her last words were, ‘I don’t want anybody to be upset.’ And I was really upset for a few days,” Samantha Manns, 18, told her hometown Ohio paper, the Chillicothe Gazette, which reported her story Monday. “Then I thought, maybe I can’t be happy right now, but I can do things to make other people happy.”

More on Yahoo!: It's Random Act of Kindness Week. Be Kind to Others.

She launched her plan back in February at a McDonald's drive-thru, where she paid the $5 bill of the customer behind her. It was simple, really, and made a total stranger's day.

The customer, she said, cried tears of joy. “I saw it in my rear-view mirror,” Manns told Yahoo! Shine. “It made me feel pretty good.”

She repeated that deed a few days

by Jessica Girdwain for SHAPE.com

These diet mistakes could be messing with your metabolismThere you are working so hard to drop pounds: busting your butt at the gym, cutting back calories, eating more vegetables, maybe even trying a cleanse. And although you can find experts to recommend all of these efforts, your plan may actually be foiling your weight-loss goals.

As contradictory and exasperating as it seems, some common diet mistakes can hamper your metabolism, your internal furnace that incinerates calories 24/7, whether you're sprinting in spin class or sitting on your derriere in front of the TV. That doesn't mean you should quit your gym membership and go buy a pint of chocolate chocolate chip. Keep up the work and keep losing with these easy fixes.

1. Eating a high-carb breakfast: You've been told over and over that people who eat a morning meal tend to have smaller waistlines, but some find that noshing in the a.m. actually makes them hungrier. If you can relate, it may be that the "healthy breakfast" you're eating-such as cereal

by Joe Donatelli for SHAPE.com

Everyone tells you to avoid stress, but they may be doing you a disservice!Books, daytime talk shows, Jack Johnson-everywhere we turn someone is telling us to avoid stress. But those authors, experts, and mellow crooners might be doing everyone a disservice. Stress can be good.

Alia Crum of Columbia University and her colleagues will publish research in the April 2013 edition of The Journal of Social and Psychological Sciences that shows training people to view stress as a positive thing can significantly improve job performance and health.

Crum defines stress as the experience or anticipation of a threat or challenge in one's goal-related efforts. "We don't get stressed about things that don't matter to us," Crum says. "I think that's critical because we're spending all of our time and money and energy trying to get rid of our stressors. What we're really doing is throwing out the baby with the bathwater. Somewhere underneath there is something you really care about."

RELATED: 7 Stress-Relieving Workouts that Aren't

That mountain looks big, doesn't it?

Have you ever held onto a secret? Been weighed down by a secret? Felt the burden of secrecy? They way we talk about it, you'd think a secret was a physical entity you had to carry around with you from place to place. Surprising new research finds that might not be so far from the truth.

Michael Slepian, a social psychologist at Tufts University, recently tested whether the burden of secrets goes beyond the metaphorical. To do this, he recreated an old experiment where participants had to hold a heavy object and look at picture of a hill and estimate the slope, then try to toss a beanbag at a target. The idea is that if you're schlepping a full backpack, the thought of having to lug it up a hill is going to make that hill look like a tough climb. And it will make that target look so far away . In Slepian's version, subjects held a secret instead of physical load. He had them write down either a big or small secret they were holding, then perform the tasks.

QUIZ: Are You an

Source: 3 Morning Mistakes That Slow Down Metabolism

Metabolic rate is affected by several factors including age, weight, and genetics. Although there's not a whole lot you can do about those things, there are still choices that can cause metabolism to fire up or fizzle. If losing weight is your goal, avoid these metabolism-slowing mistakes in the morning.

• Eating too late: Skipping breakfast is one of the worst things you can do for weight loss since it causes your metabolism to slow down. When you don't eat, the brain sends a message to the rest of the body to conserve energy, signaling it to hold onto the stored fat that you're trying to get rid of. Eating within an hour of waking sparks the metabolic process called thermogenesis that turns the food you eat into energy. And no - a cup of coffee does not count as breakfast! Instead choose one of these high-protein breakfast ideas under 350 calories. Make sure to eat throughout the day to maintain blood sugar levels

Source: 10 Things to Know Before Your First Time - Yoga Edition

The scene can be intimidating at a yoga studio, so if you're new to yoga, read these 10 insider tips to help you feel more confident, comfortable, and prepared when entering class for the very first time.

• Don't take class on a full stomach: Trying to do yoga right after mealtime will hinder your practice. In order for your body to twist and hop into poses, the stomach can't be digesting something heavy. Yoga teacher Kristin McGee suggests eating an hour before practice, but if you aren't able to and are starving, she suggests having a banana no less than 20 minutes before class.
• Arrive early: Head to the studio at least 10 minutes before the scheduled class in case there's paperwork to fill out or if you want to ask about any introductory discounts for new students. Arriving early also gives you a chance to set up in a prime location, and perhaps even connect with the teacher. Be sure to say it's your first