A survey by the Know Your Limits campaign found that holidaymakers averaged eight alcoholic drinks every day during their summer break.
Now 19% have pledged to take two days off drinking a week, 16% planned to stop Monday — Thursday and 12% are going to have a dry month.
Ms Merron said: ‘It's all too easy to slip into the habit of drinking too much on holiday. And it's always hard to get back into a normal routine. But we should try to use September as the new January and make a pledge to be a little more healthy.'