Life begins at 38. Yes,a new study has found Britons generally enjoy a more comfortable existence during their 30s and they feel most content with their life at 38. Sexual confidence,a good work-life balance and ease in social situations all reach a high in that decade,the survey of 2,000 adults showed. The lifestyle research revealed that twice as many people said money was more important to them than friends,while most said they would not swap their life with one of their friends. More than one in four of those surveyed said they did not feel in control of their own lives,and two out of five worried about getting old. Married people or those with a partner said they felt most content at the age of 42,while those who have not tied the knot said true contentment came at 27. Women also were the most content and at ease with their bodies at the age of 31,while men felt most body confident at 30,the findings revealed. But both the sexes felt their sexual confidence peaked when they turned 35,the 'Daily Mail' reported. The most satisfactory balance of work and family life was achieved at 34,but 41-year-olds thought they made the most of life more so than any other age group,according to the poll. Twenty-somethings were also more likely to be envious of their friends and cared more about money than their health,says the study by The Huffington Post UK. The figures contradict an academic study published earlier this year,which found that happiness throughout life is a "u-shaped curve".