Older employees tend to be more miserable in their jobs, with the rapid descent into workplace drudgery kicking in at the age of 35, a new study claims. 

一份新的研究表明，员工年纪越大，越容易在工作中感到沮丧，一旦到达35岁，他们就会迅速厌倦职场。

While millennials may be full of youthful exuberance for their new roles, the reality of working life has set in for Generation X and Baby Boomers. 

Experts looked at a range of factors affecting job satisfaction and found that older workers reported higher levels of stress and dissatisfaction.

This resulted in almost one fifth reporting that they are unhappy at work, according to the report - meaning burnout may hit sooner than you think.

Researchers from Happiness Works, on behalf of recruitment firm Robert Half, found 17 percent of people over the age of 55 were unfulfilled in their roles. 

Generation X didn't fare much better, with 16 percent of 35 to 54-year-olds admitting they were unhappy. 

Half that number of Millennials said the same, with less than one in ten (eight percent) of workers aged 18 to 34 saying they were dissatisfied in their jobs. 

The full report, which examined the influences behind employee happiness, discovered workplace stress was the largest factor affecting older workers. 

This was coupled with creative dissatisfaction, struggling to find a happy work-life balance and feeling under-appreciated.