Psychological well-being has been linked to many important life outcomes, including career success, relationship satisfaction, and health.
The feel good factors are: Live in the moment (M), be curious (C), do something you love (L), think of others (T), nurture relationships (N), and take care of you body (B).
Mounting evidence suggest that happiness might be at least as powerful a predictor, if not a more powerful predictor than some of the other lifestyle factors such as diet and physical activity.
Dr Kashdan reviewed the results of nationwide research carried out into how people truly feel, inside and out.
Dr Kashdan, author of ‘Curious? Discover the Missing Ingredient to a Fulfilling Life’ drew upon his years of experience to analyse the research.
Whilst it may not appear obvious how a combination of letters and numbers will make you feel good, Dr Kashdan believes this formula is the perfect prescription for a happy soul.
Andrew Steptoe, the British Heart Foundation Professor of Psychology at University College London, has found that happier people also have greater protection against things like heart disease and stroke.
"We know that stress which has bad effects on biology, leads to those bad changes as far as health is concerned," said Mr Steptoe.
"What we think is happening is that happiness has the opposite effect and has a protective effect on these same biological pathways".
Psychologists have long argued that people have a "set point" for happiness. Regardless of what life brings, the set-point theory goes, happiness levels tend to be stable. A big life event could create a boost of joy or a crush of sorrow, but within a few years, people return to a predetermined level of life satisfaction, according to the theory.
He said: 'There is no single secret to feeling good, but when these six ingredients are carefully attended to, in the right doses, you will be on target for a happy life.
'Each of the ingredients requires a bit of work.
'Just know that your hard work will lead to the greatest rewards possible.'
Steven Taylor, Marketing Director at Transform Cosmetic Surgery said: 'We are delighted to have such a well respected figure as Dr Kashdan involved on the Feel Good Campaign and couldn’t be more pleased that the partnership led to the creation of an actual formula to Feel Good.