From romantic dinners for two to cozy evenings spent watching TV and munching popcorn on the sofa, spending time with your other half can be a calorific affair.

Now, a new survey has revealed that being in a relationship is the single biggest cause of weight gain - superseding more obvious causes such as overindulging on holiday or comfort eating after a break-up.

英国《每日邮报》报道，坠入爱河会让情侣们吃得更多，导致双方都增肥。

Is it true?