London: Even if you don't have enough reasons to cheer, keep smiling, for a scientific study says that today is the happiest day of the year.
A British psychologist at Cardiff University has devised a formula to pinpoint the day when people are all most likely to feel the cheeriest -- his complicated mathematic formula is: O + (N x S) + Cpm/T + He.
In fact, he gave values to each symbol and added being outdoors (O) to nature (N) multiplied by social interaction (S), added memories of childhood summers (Cpm) simply divided by the temperature (T), and added excitement about holidays (He).
And, according to Dr Cliff Arnall, people should forget credit crunch worries because the secret of happiness lies with things that are free, leading British newspaper 'The Daily Telegraph' reported.
"People's minds are on the credit crunch -- but that doesn't take away from the equation's primary factors, which are spending time with people you love and being outdoors in the warm weather. The most important things you can do to be happy are free. People may be less able to afford other leisure activities but it's free to walk in the park or paddle in a stream. It refreshes you and you forget your other worries," said Dr Arnall.
"And the most important thing in our lives are our relationships -- and no amount of money can buy that. Any psychologist, life coach or happiness expert will tell you that relationships with people are what makes you happy. It's simple. If you heard on the radio that the world would end in 10 minutes, who would you call? Call them now and tell them what of think of them -- and that will make both of you happy," he added.