Katie Byrne: how to lose friends and alienate people
We're almost midway through the 'January Purge', the annual attempt to counterbalance the excesses of December with a spot of time-honoured self-flagellation.
If December is the month to put your foot on the accelerator while staring straight past the rear-view mirror, January is the month to jam on the brakes and book in for an NCT.
All the talk is of seven-day juice fasts, 14-day body shocks and 30-day challenges. And if you're not trying to shed pounds, you're trying to save them.