According to a recent U.S. study found that married couples of the chance of becoming obese are people in love but not yet married twice. The longer the marriage, weight gain, obesity has become the greater the risk.

The study also found that women with the couple living together without marriage, then the probability will be greater gain weight. However, the same situation of men, gain weight and will not increase the risk. The researchers said they also do not know why there is such a difference. At the same time, the scientists stressed that the marriage will bring many health benefits, such as less smoking and mortality is likely to shrink.