People who lose weight while they're in an apparently
steady relationship are secretly preparing to dump
their other halves, says a new relationships study.
The report - by sociologists
in Heidelberg, Germany - says happy couples put on weight because there is less pressure on them to be attractive.
Study head Thomas Klein explained: "When you are on the look out for a new partner people try to be as thin and attractive as possible. However people in a relationship feel less pressure and often put on weight as they do not watch their weight so much."
Professor Klein studied the link between happiness and body weight and said the warning signs could include a sudden obsession
with the gym
or getting involved in sports and diets. However a crisis in a relationship can end the gluttony
, he says. And that could end up with both partners dropping weight.
Researchers studied more than 2,000 people aged between 16 and 55. Among the findings was that people in couples generally weighed more than single people hoping to attract a partner in a competitive dating market.
A separate U.S. report found that married couples put on weight through 'marital synchronicity
' - a shared environment of too much calorie-rich food and not enough exercise. Researchers said: 'Once the ink on the marriage contract dries up, they relax the control they had on their weight and appearance.'