The research by the University of Waterloo, Ontario, shows exactly why commuting is such a contentment killer - and surprisingly, traffic is not the only reason to blame.
"We found that the longer it takes someone to get to work, the lower their satisfaction with life in general," said Margo Hilbrecht, a professor in Applied Health Sciences and the associate director of research for the Canadian Index of Wellbeing.
While commuting has long been thought to have some upsides, like providing time to unwind and transition from the workday, the new findings suggest the opposite is true for most people.
They found that on top of being linked to lower life satisfaction, long commute lengths are related to an increased sense of time pressure.
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"Some people may enjoy a commute, but overall, longer travel time is linked to feelings of time crunch, which can increase stress levels," said Hilbrecht.
Lengthy commutes have already been linked to poor mental and physical health, including hypertension, obesity, low-energy and illness-related work absences.
Beyond bad traffic, the researchers found one other factor to be highly correlated with commuters' life satisfaction: physical activity.
"Physical activity can mitigate commuting-related stress if workers can include it in their daily routines, but the obvious constraint is time scarcity. Longer commutes mean less time for other activities, which leads to lower life satisfaction," said Hilbrecht.
Other factors linked to higher life satisfaction among commuters include flexible work hours and a higher household income. According to the study, women reported higher levels of time pressure, as did those with a partner.
"The message to employers is that encouraging flexible work hours or providing time for physical leisure can pay dividends in their employees' satisfaction with life," said Hilbrecht.
The study was published in World Leisure Journal.