The science of happiness - The Happiness Formula (Part-4)

We all want to be happy but the problem has always been that you can't measure happiness.

Happiness has always been seen as too vague a concept, as Lord Layard, Professor of Economics at the LSE and author of "Happiness - lessons from a new science" points out.

"There is a problem with the word happiness.

"When you use the word happy, it often has the sort of context of balloons floating up into the sky or something frivolous."

Now scientists say they can actually measure happiness.

Neuroscientists are measuring pleasure. They suggest that happiness is more than a vague concept or mood; it is real.

What makes us happy?

According to psychologist Professor Ed Diener there is no one key to happiness but a set of ingredients that are vital.

First, family and friends are crucial - the wider and deeper the relationships with those around you the better.

It is even suggested that friendship can ward off germs. Our brains control many of the mechanisms in our bodies which are responsible for disease.

Just as stress can trigger ill health, it is thought that friendship and happiness can have a protective effect.

According to happiness research, friendship has a much bigger effect on average on happiness than a typical person's income itself.

One economist, Professor Oswald at Warwick University, has a formula to work out how much extra cash we would need to make up for not having friends.

The answer is £50,000.

Marriage also seems to be very important. According to research the effect of marriage adds an average seven years to the life of a man and something like four for a woman.

The second vital ingredient is having meaning in life, a belief in something bigger than yourself - from religion, spirituality or a philosophy of life.

The third element is having goals embedded in your long term values that you're working for, but also that you find enjoyable.

Psychologists argue that we need to find fulfilment through having goals that are interesting to work on and which use our strengths and abilities.

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