Psychological Predictors of Happiness

Psychological Predictors of Happiness
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Article Summary

Why do some people grow better and happier with age, constantly improving like a fine Cabernet Sauvignon, while other people simply decay with age? Can we find predictors of happiness? The only way to discover the secrets of a long and happy life would be to recruit a large group of young people into a study, then continually follow and assess them throughout their lives....

Key Takeaways

  • This article explains The Harvard Grant Study in simple medical language.
  • This article explains Defense Mechanisms in simple medical language.
  • This article explains Immature Defences in simple medical language.
  • This article explains Mature Defences in simple medical language.
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Definition

Why do some people grow better and happier with age, constantly improving like a fine Cabernet Sauvignon, while other people simply decay with age?

Can we find predictors of happiness?

The only way to discover the secrets of a long and happy life would be to recruit a large group of young people into a study, then continually follow and assess them throughout their lives.

This would be a monumental task.

The Harvard Grant Study

More than eighty years ago, a team of physicians at Harvard University began exactly that. They recruited two hundred and sixty undergraduates into a longitudinal study and followed them for life.

The subjects received ongoing physical and mental health examinations, as well as assessments of personality type, career success, marital status, alcohol use, life satisfaction, and more. Over the decades the study was expanded to include men and women from more diverse backgrounds.

Initially, the study identified risk factors we now take for granted, such as the harm caused by smoking, obesity, alcoholism, and loneliness. Moreover, the study went on to discover the psychological predictors of health and happiness across the lifespan.

So what psychological factors predict a long and happy life?

Defense Mechanisms

Firstly, it’s important to understand something about defense mechanisms.

Since the days of Sigmund, Freud psychotherapists have studied defense mechanisms to better understand how different people cope with stress. Defense mechanisms are the absorbers of the soul. They protect us against the harshness of reality by allowing us to distance ourselves from unpleasant thoughts and feelings.

For example, most people are familiar with ‘denial’ as a common defense mechanism, but there are more than twenty others.

A key finding of the study was that not all defense mechanisms are equal. Those whose lives turned out badly, as measured by early death, poor mental and physical health, or low life satisfaction, tended to rely on the same unhealthy defense mechanisms throughout their lives. In contrast, the happiest and most successful people used certain ‘mature’ defenses throughout their lives.

Immature Defences

The researchers used the terms immature Vs. mature defenses to distinguish between the different coping styles. Examples of immature defenses are shown below. These are strategies to avoid. They predict lousy lives. It’s also important to understand people use these mechanisms unconsciously. Those who employ these strategies will deny they are doing anything of the sort.

Denial

Denial is a familiar example of how some people buffer themselves against stress. If reality is unpleasant, then reality is wrong! “I don’t have a drinking problem because I hardly ever crash my car. My daughter would never spend the money I give her on drugs. The person I’ve been seeing for five years is trapped in an unhappy marriage and will leave soon. The dark mole on my shoulder hasn’t spread much, and besides doctors don’t know everything.”

The problem with denial is reality usually catches up. We pay a long-term price for short-term comfort.

Passive Aggression

The passive-aggressive person deals with stress by sabotaging the demands placed on them. As if hitting back at the world they punish others by being constantly late, or ‘accidentally’ breaking something when asked to help, or claiming they didn’t mean to say anything hurtful. They may use loaded language such as “I know you’re too busy to help me,” or “you’ve done so well given your background.”

Projection

Projection is when we condemn in others what we fear in ourselves. Like a movie projector, we project our faults onto other people. It’s always someone else who is dishonest, lazy, or selfish. This is why when two people clash they have more in common than they can admit; – perhaps better not to point this out!

Reaction formation

With reaction formation, a person reduces stress by adopting the opposite feeling or impulse to what they truly feel. More than simple denial where we insist it isn’t so, with reaction formation we go further and insist the opposite is true.

For example, a romantic attraction towards someone unobtainable is transformed into hostility. Or resentment towards an overbearing boss or a difficult relative is transformed into respect. This is why self-righteous people end up in sex scandals. As Hamlet once said, “methinks thou protest too much.”

So what are Mature Defences?

Mature Defences

In contrast to the immature defenses above, the happiest and healthiest people in the study used ‘mature’ defenses throughout their lives. Here are five examples. Using these strategies in the face of life’s challenges will very likely promote your happiness and extend your life!

Sublimation

With sublimation, we deal with tension and stress by re-channeling the energy into something more constructive or socially acceptable. You might throw yourself into sports or vent your feelings through a hobby. Interestingly, in the 1900s Vienna, Freud believed public interest in erotic artwork was an example of rechannelling sexual impulses that were otherwise socially unacceptable at the time. Freud must have been a fun guy.

Suppression

Unlike repression where you convince yourself, that you are not angry with your boss, your partner, or the police officer writing you a ticket, with suppression you know absolutely that you are angry. However, you are insightful and stoic enough to bite your lip and count to ten. Whereas repression is unhealthy (Woody Allen once said “I don’t get angry, I get a ”) suppression involves insight and maturity (yes I am angry, but I’m also in control).

Anticipation

Instead of avoiding stressful issues or deadlines by living in a dream world, it’s better to focus on challenges and plan accordingly. By acknowledging challenges and preparing for them we don’t become overwhelmed. However, burying your head in the sand, or self-medicating with drugs or alcohol gets nothing done and only creates more stress tomorrow. Anticipate, don’t avoid.

Altruism and Kindness

This is one mature coping mechanism that has been confirmed by positive psychology research. There is genuine satisfaction and pleasure in helping other people. Acts of kindness boost serotonin and lower cortisol making us stronger in the face of our challenges. Even in cases of great loss or grief, supporting others experiencing a similar loss is a healthy way of coping.

Humor

Humor has been called the Rolls-Royce of coping mechanisms. Humour is the alibility to find one small positive in an otherwise bleak situation. If we can’t change the situation, we can still soothe our suffering. Even in extreme situations such as in concentration camps people have described keeping their spirits alive by inventing amusing nicknames for the guards or joking about the food.

People blessed with a sense of humor are difficult to provoke. When Groucho Marx was refused membership in a restricted country club, he didn’t get upset. He wrote back asking if his children, being only half Jewish, could join the club on the condition they would only go in the swimming pool up to their waists.*(Check note 3)

All You Need Is Love

Finally, the Grant study found the Beatles were right all along. In positive psychology, we say ‘other people matter.’ The data from the Grant study shows this is overwhelmingly true. More than money, fame, career success, social class, intelligence, or genes the single most important factor in a long and happy life is love. Intimate bonds protect us from life’s hardships, delay mental and physical decline, and predict long-term happiness.

Putting It All Together

Think about how much fun you are to be around when you are under stress. Not much. Worse still, if you are stuck in immature defenses such as denial or projection you are, quite frankly, obnoxious. You will drive love away.

But if you cope by using mature defenses such as sublimation, kindness, or humor, you may bring love closer.

This matters. As Buddha said, ‘life is suffering’ (another fun guy). But if you have one or more people to support you during times of suffering, you’ll more likely bounce back. But if you are alone in the world, if you don’t have someone to support you through painful experiences, you’ll internalize problems, isolate yourself, and live a lifetime of .

So, the next time you are checking your phone instead of being present with your significant other, or you’re on social media instead of being with your friends, consider making a different choice.

Take care of love and it will take care of you.

NOTES

For many years the principal researcher of the Harvard Grant Study was Professor George Vaillant.

When he retired from his study he said:

“The seventy-five years and twenty million dollars expended on the Grant Study points to a straightforward five-word conclusion… ‘Happiness is love. Full stop.’

  1. The Grant study is officially known as the ‘Harvard Study of Adult Development. It takes its more popular name from its philanthropist W.T. Grant.
  2. The study’s most famous recruit was John F. Kennedy.
  3. *Jewish humor often takes the prize for defying those in power. But other traditions support the underdog. Here’s an example of Aussie humor. In the splendid game of cricket, umpires stop playing when the light fades. Before the days of digital technology, umpires relied on their best judgment to do this. Very occasionally Australian teams would criticize English umpires, perhaps more accustomed to gloomy conditions, for being too slow to halt play. One day an Aussie batsman was struggling in the fading light. As the clouds grew darker he became increasingly frustrated with the English umpires for insisting the game should continue. Eventually, he was bowled out. But he didn’t get upset. He reached into his pocket and produced a cigarette lighter. He balanced the lighter on the end of his outstretched bat and used the flame to find his way back to the changing rooms. True story. Sometimes the last laugh is the ultimate consolation prize.
REFERENCES

  • Johnson, N. J., Backlund, E., Sorlie, P. D., & Loveless, C. A. (2000). Marital status and mortality: The National Longitudinal Mortality Study. Annals of Epidemiology, 10, 224-238.
  • Kiecolt-Glaser, J. K., & Newton, T. L. (2001). Marriage and health: His and hers. Psychological Bulletin, 127, 472-503.
  • Kramer, U. (2010). Coping and defence mechanisms: What’s the difference? Second act. Psychology and Psychotherapy: Theory, Research and Practice, 83(2), 207-221.
  • Malone, J. C., Cohen, S., Liu, S. R., Vaillant, G. E., & Waldinger, R. J. (2013). Adaptive midlife defense mechanisms and late-life health. Personality and Individual Differences, 55(2), 85-89.
  • Vaillant, G. E. (2002), Aging Well, Boston, MA. Little Brown
  • Vaillant, G. E. (1977), Adaptation to Life, Boston, MA, Little, Brown.

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Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Orthopedic doctor, rheumatologist, or physiotherapist depending on cause.

What to tell the doctor

  • Write which joints hurt, swelling, morning stiffness duration, fever, injury, and walking difficulty.
  • Bring X-ray, uric acid, ESR/CRP, rheumatoid factor, or previous reports if available.

Questions to ask

  • Is this injury, osteoarthritis, rheumatoid arthritis, gout, infection, or another cause?
  • Which exercises, supports, or lifestyle changes are safe?
  • Do I need blood tests or X-ray?

Tests to discuss

  • Joint examination and range of motion
  • X-ray when chronic arthritis or injury is suspected
  • ESR/CRP, uric acid, rheumatoid tests when inflammatory arthritis is suspected

Avoid these mistakes

  • Do not ignore hot swollen joint with fever.
  • Avoid repeated steroid injections/tablets without a clear diagnosis and follow-up.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Psychological Predictors of Happiness

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

Internal learning pathway

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