Here's what your resolution should be for a happier, healthier 2018

Washington D.C. [USA]: You're just like the majority of people around you if getting more fit and losing weight is your New Year's resolution to kick off 2018.

Every year, many of us pledge to work harder at being healthy, losing weight or eating more veggies.

Here's a better resolution: Lose the critical thoughts about your body.

That's the advice of Florida State University Professor Pamela Keel. Her research team has tested a new program encouraging body acceptance and seen dramatic results.

"Consider what is really going to make you happier and healthier in 2018: losing 10 pounds or losing harmful attitudes about your body?" Keel asked.

Keel has spent a career studying body-image issues, particularly how they relate to eating disorders, and the results are not pretty.

Over the past 35 years, the ideal body type -- particularly prevalent in media images -- has become virtually unattainable for most people.

"There's a big gap between what we're shown as being ideal and what to aspire to and where we actually are as a population," Keel said. "That leaves people feeling bad about themselves, and, unfortunately, feeling bad about your body does not actually motivate a person to pursue healthy behavior."

-Body-acceptance strategies

One exercise called mirror-exposure may initially feel uncomfortable, but it directs a person to stand in front of a full-length mirror in little or no clothing and identify specific body traits that are good. The praise might focus on the body's function.

"You would say, 'I really appreciate the way my legs take me wherever I need to go,'" Keel said. "'Every day without fail, they get me out of bed, to the car, up the stairs and into the office. I don't have to worry about walking.' It can be that kind of functional appreciation of what your body does for you."

Or a person might appreciate the appearance of a body feature like the skin, or the shape of the shoulders or neck.

"You can even go for higher risk body parts," Keel said. "Rather than looking at yourself and saying, 'I hate my gut,' you could say, 'I really like the shape of my legs.' If there is something about you that you like, the idea is to spend time focusing on it."

The strategies have worked in studies led by Keel and other researchers. This approach, focusing on positive things rather than singling out negative ones, helps transform people's feelings about their bodies.

The intervention employs the basic psychological principles of cognitive dissonance theory: Do the opposite of a negative attitude. When actions oppose the internal mindset, Keel said, the easiest way to resolve that psychological clash is to change the attitude.

"If you make yourself consistently behave outwardly in a way that reinforces appreciation and acceptance of your body, then those actions will eventually get you to a point where you actually do feel that way about your body," Keel said.

Another exercise encourages people struggling with body acceptance to think about specific activities they avoid, such as not going swimming in the summer or not wearing shorts when it's hot, and then choosing to go out and do them.

"Most people experience a sense of freedom when they realize that nothing bad will happen if they wear a swimsuit or shorts in public -- everyone is completely fine with it. This reinforces body acceptance through experience."

-Getting results

Keel said research has repeatedly found that the strategies work, and the benefits often go beyond improved body image.

"It turns out that discarding those unattainable body ideals also improves your mood, self-esteem, reduces disordered eating behaviors and may reduce the risk of self-injurious behavior," Keel said. "All sorts of things get better as a result of feeling better about your body."

Keel calls it a powerful intervention that does not take a lot of time.

"When people feel good about their bodies, they are more likely to take better care of themselves rather than treating their bodies like an enemy, or even worse, an object," Keel said. "That's a powerful reason to rethink the kind of New Year's resolutions we make for 2018."