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Happiness busters: 10 ways you're ruining your mood

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(CBS News) Happiness seems more mysterious and harder to obtain than ever before.

New research from Carnegie Mellon University reveals that Americans' stress levels have been on a steady rise for 25 years, and with about one in 10 taking antidepressants, attaining happiness is a difficult task for many.

According to Sean Meshorer, author of "The Bliss Experiment," many of us engage in thoughts and activities that sabotage our mood. The good news, he told CBS News, is once we realize what we're doing to ourselves and learn a few quick and simple remedies, we can change these happiness busters.

Keep clicking to see 10 common mistakes we make that might be ruining your mood - and what to do about them.

The publisher of "The Bliss Experiment," Simon & Schuster's Atria Smart Books, shares the same parent company as CBS News.

Happiness busters: 10 ways you're ruining your mood

Thumbs up. SAMe, a substance that occurs naturally in the body, has been available as a dietary supplement in the U.S. for more than a decade. It seems effective against depression and osteoarthritis pain. SAMe is considered safe for most people, but it can cause gas, vomiting, diarrhea, constipation, dry mouth, headache, mild insomnia, anorexia, sweating, dizziness, and anxiety. istockphoto

Ruminating on the past

While many of us have experienced slights or major traumas in our lives, how we deal with those experiences can be the difference in attaining happiness. Research in Psychological Science reveals that constantly dwelling on past events or missed opportunities is a major trigger for clinical depression.

In part, this is because we suffer from selective memory bias. A study led by cognitive neuroscientist Dr. Elizabeth Kensinger of Boston College showed that people are much more likely to remember past negative events than positive ones. The more they dwell on those, the more likely they are to overemphasize everything bad that's ever happened - and exaggerate its impact on their lives.

The past can't be changed. Ruminating on it brings strong feelings of helplessness and bitterness, Meshorer says.

Happiness busters: 10 ways you're ruining your mood

Financial advisor Allan Roth is not ashamed to admit that he enjoys immediate gratification as much as the next person. He likes his cable and internet, has a 70 inch HDTV, and stays in nice hotels. He has good insurance and uses his credit card whenever he can.That said, he also hates paying full price: "Never pay retail" is his motto. Here are ten simple ways to be materialistic while still improving your finances. CBS/iStockphoto

Chasing fame or money

rich and poor handsScientific research overwhelmingly shows that wealth, luxury goods and fame have little impact on our lasting happiness, according to Meshorer.

A survey of American billionaires - published in Social Indicators Research - found that as a group, they are no happier than the average middle-class American. Of the minority of billionaires who said they were happy, not a single one listed money as the reason. What did make them happy? Having an abundance of warm, loving relationships and finding their life's purpose.

Other research from University of Rochester professors showed that those who make the pursuit of fame a primary life goal are significantly less happy overall than those who have loftier ambitions.

Happiness busters: 10 ways you're ruining your mood

Thumbs up. SAMe, a substance that occurs naturally in the body, has been available as a dietary supplement in the U.S. for more than a decade. It seems effective against depression and osteoarthritis pain. SAMe is considered safe for most people, but it can cause gas, vomiting, diarrhea, constipation, dry mouth, headache, mild insomnia, anorexia, sweating, dizziness, and anxiety. istockphoto

Worrying about the future

While ruminating about the past may lead to depression, worrying about the future won't help happiness either.

Research from psychologist Suzanne Segerstrom of University of Kentucky finds that the more time people spend generating, "What if something bad happens" scenarios, the more likely they'll needlessly dwell on the most anxiety-inducing outcomes that turn out to almost never actually happen - putting them through the emotional ringer for nothing. Not only does this kind of worrying generate anxiety, but research published in Circulation indicates it also leads to coronary heart disease and may shorten lifespan.

Happiness busters: 10 ways you're ruining your mood

Some antidepressants do cause weight gain. If that's a concern, it may be possible to find an antidepressant that doesn't have this side effect. Be aware, though, that weight gain can also be a symptom of depression. If that's the case, taking an antidepressant might actually help with weight loss. istockphoto

Obsessing over physical appearance

woman, mirror, body image, eating disorder, istockphoto, 4x3Beauty is guaranteed to fade at some point, so putting too much emphasis on it will eventually cause happiness to fade with it, warns Meshorer.

A study in the Journal of Positive Psychology, found that even runway models at the peak of their beauty were significantly less happy and had more psychological problems than their average counterparts. One study in the Australian and New Zealand Journal of Psychiatry that looked at children between the ages of 9 and 12 found those who believed beauty was a key to happiness were more likely to develop depression than those who didn't.

Beauty makes people dependent on others' evaluations for their esteem. This creates anxiety because hopes for happiness are transferred into the hands of acquaintances and strangers - people over whom we ultimately have little control.

Happiness busters: 10 ways you're ruining your mood

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Engaging in bad habits on auto-pilot

smoking, businessman, lawyer, cigarette, stock, 4x3, smokeHabits are learned behaviors we gain by doing the same thing over and over until our conscious minds no longer need to think when performing them. While some habits are positive, many people have unhealthy ones they execute on auto-pilot without realizing such habits are keeping them from attaining their goals, getting in the way of happiness. For example, many people reflexively react with negative emotions when their plans are temporarily thwarted, by blaming others or through polarized thinking (my goal can "never" be reached), that prevent them from achieving success.

Research published in Scientific American reveals that many of our "happiness failures" are due primarily to bad habits rather than inability or ill-intent.

The good news, Meshorer says, is that once we become aware of habits sabotaging our happiness, research by Phillippa Lally in the European Journal of Social Psychology shows that we can change them in as few as 18 days.

Happiness busters: 10 ways you're ruining your mood

The study showed that anger causes an almost seven-fold increase in the risk of a brain bleed. istockphoto

Thinking in black and white

angry woman, mood swings, dementia, Alzheimer's, 4x3, genericPeople are  prone to distorted thinking that makes some things seem much worse than they really are. Thinking issues or people are only good or bad - without any middle-ground - or using words like never, nothing, everything or always suggests you may be a polarized thinker.

Research published by psychologist Nalini Ambady of Stanford University has shown polarized thinking creates at least two serious problems: First, it virtually guarantees that reality is being distorted, leading to poor decisions and critical errors in judgment. Second, too much distorted thinking magnifies negative emotions including, depression, anxiety, anger and fear.

Happiness busters: 10 ways you're ruining your mood

Who's really at risk for suicide? There's no surefire way to know. But new research published in the American Journal of Psychiatry shows that a simple diagnostic "tool" known as the Columbia-Suicide Severity Rating Scale can be extremely accurate at spotting suicide-minded people who otherwise might fall through the cracks. And the scale - which includes a set of five simple questions - can be administered in a matter of minutes by anyone trained in its use. Keep clicking to have a look at the tool researchers say all doctors should be using on a routine basis... istockphoto

Being a pessimist

unhappy, sad, glum, man, sofa, lonely, depressed, stock, 4x3Optimists live longer and healthier lives, research suggests. Psychologist Martin Seligman of the University of Pennsylvania has published extensive research showing that optimists are also more successful in their careers, earn more money, have more friends and have better, longer-lasting romantic relationships than pessimists. Critically, new research in Psychological Science shows that positive people have a more accurate perception of reality and cope with stress better than negative people. When bad things happen to optimists, they are more resilient, bounce-back faster and are more likely to triumph over adversity than pessimists.

Happiness busters: 10 ways you're ruining your mood

Here's the tip off: Your desk is a mountain of paper and you just wasted a half hour searching for an important legal document. Or maybe you failed to make appointments for your children to see the pediatrician, and the school wants their immunization reports - pronto. If you have ADHD, getting and staying organized is a challenge for you. Breaking organizational tasks into smaller steps may help, according to the National Resource Center on ADHD, in Landover, Md. istockphoto

Surrounding yourself in negative environments

Whether it's movies, music, video games or unpleasant living spaces, physical environments affect people's happiness much more than they realize. Research shows that all humans are highly susceptible to and influenced by our environments.An absence of natural light, too much clutter, or ugly imagery can all trigger anxiety, depression and insomnia.

Research published in the Journal of Broadcasting and Electronic Media and Psychological Science showed that too much negative media consumption - like watching depressing news or movies, playing violent video games, listening to sad or angry music or reading disturbing books can severely impact mood, emotions and life outlook for the worse.

Happiness busters: 10 ways you're ruining your mood

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Hanging with the wrong crowd

ArgumentMuch like the physical environment, family or friends who are negative, unhappy or unstable can rub off on you. Studies by social scientist and physician Nicholas Christakis at Harvard show that thoughts and emotions - positive or negative - are highly contagious, able to be transmitted to one another in as little as one second.

In related findings, people who sustain meaningful, healthy relationships are happier than those who do not. Abundant social networks are why people of Bangladesh, one of the poorest countries in the world, report higher levels of happiness than most of us in developed countries.

Happiness busters: 10 ways you're ruining your mood

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Being selfish and self-centered

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Meshorer's research finds that understanding other people's perspectives, being compassionate and serving others selflessly are essential for happiness. The more we focus only on ourselves, he says, the more likely we are to ruminate, worry and skew our perceptions of reality for the worse.

A study by ethicist Stephen G. Post of Case Western Reserve University shows that people who are considerate of and helpful towards others are happier, more emotionally resilient, have fewer psychological problems and boost their physical health and longevity. They're also more likely to be promoted in the workplace, experience less stress and be less likely to burn out.

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