nEXERCISING in front of a gym mirror never seemed like a good idea.

Almost every fitness video or gym depicted on TV always boasts full-length mirrors. And now research suggests that we don't exercise as well or for as long in front of them.

Too true. You're either too busy concentrating on how you look to exercise properly, or so consumed with disgust at how much everything wobbles you seek solace in the nearest pub.