Dry January (or #DryJanuary if you prefer) has become increasingly popular in recent years, and it’s not difficult to see why.

After overindulging at Christmas, swearing off alcohol for a month seems like an indubitably good way of undoing the harm you did to your body over the festive season and giving your liver a proper chance to recover.

But are there measurable health benefits to this fad, or is the initiative purely a way of massaging one’s conscience?