The ages that adults are 'happiest and find love' revealed

The research suggests that you have to wait until you are 30 to be content

(Todor Tsvetkov/iStock)

People in the UK are most likely to be happiest in their relationship when they are 40-years-old, a new poll has found.

Researchers who set out to find the milestones in people’s lives found that people have to reach their thirties to find happiness and success.

The survey of 2,000 men and women in the UK found that women enjoyed the perks of being young and single at the age of 23, rising to 25-years-old for men.

People are on average healthiest at the age of 30, when they wind down their hectic lifestyles and start to take care of themselves, and most confident with their bodies aged 31.

A year later at 32, people are the best at sex, but are happiest in their relationships when they hit 40, MailOnline reported.

But they will have to wait until they are 38-years-old to be at the peak of their careers, and 42-years-old to earn their dream salary.

Psychologist Donna Dawson said of the survey conducted to coincide with the DVD release of The Last Witch Hunter that people in their twenties “work out what we really want from life”, the Mirror reported.

When people hit thirty, we are “physically in our prime, still advancing in our careers and more sure of what we want.”

The pursuit of happiness is an area of research that Robert Waldinger, clinical professor of psychiatry at Harvard Medical School, has devoted his career to.

As the fourth director of a 77-year-long Study of Adult Development, Professor Waldinger is an expert in what makes people most content, regardless of their profession or social status.

His team has used to the study to identify factors that making people happy, including: maintaining social connections; and having high-quality where support is the foundation.

“The clearest message that we get from this 75-year study is this: good relationships keep us happier and healthier: period,” he said during a Ted Talk about his research.