New research from the University of Washington suggests that divorce is seasonal - with spikes in March and August.
These peaks seem to follow family vacations, says the team.
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So it seems that spending all that time together leads to families drifting apart.
The researchers believe it's the first quantitative evidence of a seasonal bi-annual pattern for divorce filings.
They analysed divorce filings in Washington state for a number of years to draw these conclusions, but believe this seasonal pattern is true across the US and possibly further.