Having sex makes you happiest: iPhone survey

Having sex makes you happiest: iPhone survey

Research involving 45,000 Apple smartphone users shows that making love is the best ever feel good factor. Respondents posted regular updates on their level of contentedness via an app.

It showed Christmas Day is easily the happiest day of the year and people are at their most content at 1.50 p.m. on Dec 25.

There was also a spike in Britain’s happiness on the day of the Duke and Duchess of Cambridge's wedding April 29.

Jan 31, at 8 p.m., is when people are at their lowest ebb, according to the research, the Daily Mail reports.

The 'Mappiness' project was run by researcher George MacKerron from the London School of Economics, getting more than three million responses over a year.

The app asked users to record their activity, location and happiness up to five times a day. The results were fed into a so-called hedonimeter that tracked the nation’s mood minute by minute.

The study confirmed a commonly held belief that the population’s mood darkens during weekdays when most are at work, before improving at weekends.

MacKerron said: "Through April, we see a series of spikes due to the bank holidays. Then, on the royal wedding day itself, there was a spike at around 11 a.m. during the service and again at 1 p.m. when William and Kate went out on the balcony."