Moving in with a boyfriend causes women to eat more unhealthily and put on weight. But the opposite is true for men, whose long-term health benefits.

• 英国科学家最近警告说,和男朋友生活在一起的女人的饮食往往会变得不健康,导致身体发胖;不过,男人的情况则刚好相反,长期与女友同居对他们的健康有益。